City of Devouring Time

Mikasa Pov-

Tatsuya looked at the Source of Ryūmyaku before he sighed.

I was curious about what happened so I asked, "What's up? Is there a change in plans?"

He nodded before answering, "The ROB said not to do something that we aren't supposed to. Although he said that casually, it was a warning for me."

"What were you planning?" I asked again.

"I already told you. An angel that controls time from the Toaru world." He replied.

My mouth twitched after hearing his answer, thinking about those absurd Angels that could destroy the world just by existing. The angel I thought he was talking about was different.

"And how were you planning on creating something like that? As far as I know, it should be impossible to create something like that from your Creation of All Things."

Tatsuya shook his head before saying, "Angels from the Toaru world have no free will of their own, so creating them should be possible with passable sacrifices."

"And the sacrifice was the Source of Ryūmyaku." I completed his sentence as he nodded.

"Not just the Source of Ryūmyaku. I also planned on sacrificing myself. Or a part of me, at least." He said with a smile.

I narrowed my eyes before asking, "Elaborate."

"As I said earlier, the Angels from Toaru world have no free will of their own, but they still have a conscious. Don't you think they are like me? Or the 'me' from the past." He answered with a smile.

"So you planned on sacrificing that part of yours? The memories, suffering, and the brainwashing that was done on you before we met?" I said, understanding what he was about to do.

"Yeah, such a sacrifice was necessary since I can't just create living things out of nowhere. I was about to ask for your permission before the ROB summoned us." He said, shrugging his shoulders.

"Forget it." I said, shaking my head. 'There's no way I would ever agree to that.' I thought. No matter which part of 'him' it is, all of them are equally precious to me.

I didn't doubt his words about asking me for permission. Decisions like these are always made when both of us agree to them.

After a minute of silence, I said, "Since that's not possible right now, why not create another angel related to time?"

"Which one?" Tatsuya asked, confused.

"Zafkiel." I said with a smile.

Tatsuya pondered for a minute before nodding, "Let's go with that. I'll change some things so that it'll suit me better."

'Ninja Art Creation Rebirth — Strength of a Hundred Technique'

We both activated our Creation Rebirth before sitting cross-legged over the Source of Ryūmyaku.

"Let's go. Just remember that the 'Creation of All Things' works on the principle of Equivalent Exchange. If the ability is too powerful for us to handle, we'll end up dead while creating it." Tatsuya said with a serious expression.

"So we either weaken the ability itself or add certain drawbacks that'll disappear as we grow stronger?" I replied, thinking about the limitations I should put on my ability.

"Yeah." Tatsuya said before raising his right hand towards me. I grabbed his hand with my left hand, interlocking our fingers before closing my eyes.

I raised my right hand before a knife appeared inside my palm.

I opened my eyes, looking at the knife. "So this is Creation of All things, huh? It's convenient. It's a pity that I can't recreate this ability." I said, shaking my head.

Tatsuya rolled his eyes before saying, "Just tell me whenever you want to use it."

"I know." I said with a smile before the knife in my hand disappeared without a trace. 'So convenient.' I thought.

Suddenly, my eyes widened in surprise before an idea appeared inside my brain.

'Can this ability remove people's clothes? Wait, no. Broaden your horizons. Escape humanity. It should be able to create Dog Tail Butt Plug along with a Dog Ears Headband. No. I am thinking in the wrong direction. It should be able to make someone wear them without even noticing.' I thought, imagining Hikari with a tail and dog ears.

"What's with that sadistic smile? You want a beating?" Tatsuya asked, somewhat confused. 'Hey. The only time I enjoy a beating is in the bed when I am under you, be grateful.' I retorted internally before pulling Tatsuya by his hand. Placing my mouth near his ear, I whispered my master plan to him.

"I never realised that the 'Creation of All Things' could be used like this. As expected from the smartest brain on our team." He said with admiration.

'Why does it feel like he's insulting me?' I wondered. My thoughts came to a stop as a notification popped up in front of us.

[Ding! 'The Almighty ROB' has joined the Chat Room]

[Readjusting the Username]

[Ding! 'The NEET ROB' has joined the Chat Room]

[The NEET ROB: Hey bas- WHAT THE FUCK is wrong with this system?]

Both of us looked at the Chat Room, blinking. 'The more we know him, the worse his image gets in our minds.' I thought.

[Tatsuya: What the hell are you doing?]

[The NEET ROB: Oh, yeah. I got you guys inside the Dimensional Chat Group.]

[Mikasa: That was quick.]

[The NEET ROB: Not really. Time flows differently in the universe I created. It's been seven years since we last met, at least for me.]

"This guy has zero self-awareness." I said while shaking my head. No matter how strong our 'authorities' are, we are still humans. But he treats us like we're his childhood friends or something.

[Tatsuya: You could've just 'upgraded' our mortal bodies inside your universe.]

[The NEET ROB: That's not possible, you'll find out eventually. Just know that you'll end up dead the moment you enter my universe.]

"What's wrong with this guy?" Tatsuya muttered.

[The NEET ROB: Yeah, finally got the tsundere sister to confess, now it's time to- Ahem*. The reason I am here is to ask you guys something.]

"He played that game for seven years straight."

"The level of dedication."

[Mikasa: What's up?]

[The NEET ROB: I can change one of your Usernames within the Dimensional Chat Group. Tell me the name and its owner.]

"Do you want to change your username?" Tatsuya asked while looking at me.

"It doesn't matter what it is either way." I said before an evil smile appeared on my face as I continued, "But I have another idea."

After listening to my plan, a smile appeared on Tatsuya's face and he agreed without any delay.

[Tatsuya: Mikasa's Username will be 'The Divine Prophet' since she's better at manipulating people than I am.]

[The NEET ROB: Pffffft.]

Tatsuya's mouth twitched before he said, "That guy probably choked on his beer again."

[The NEET ROB: You guys are planning to fuck the other members over without even knowing who they are?]

[Mikasa: What's the big deal? It won't be a problem if a 'prophet' suddenly gets a revelation about a future event that just happens to be in our favour. And since it's a username given by the Chat Room, no one will doubt it. If others know the future like us, then we'll switch plans.]

[Tatsuya: Nods*]

"You seriously did that?" I said while looking at Tatsuya. He didn't even react after hearing my words.

[Tatsuya: Nods*]

'His sense of humour is getting worst.' I thought, rolling my eyes.

[The NEET ROB: You guys are seriously playing 'Among Us' on a Dimensional level, huh?]

[Mikasa:...]

[Tatsuya:...]

[The NEET ROB: That's enough. How long do you guys plan on playing around near the fragment of that World's Source?]

[Mikasa: It's been an hour since we met you. What do you want us to do?]

[Tatsuya: Nods*]

[The NEET ROB: Fine, I have better things to do. Little brother is coming, my tsundere sister~.]

[The NEET ROB has left the Chat Room]

After a minute of silence, I said, "Let's start working on our abilities." Tatsuya nodded after hearing me, ignoring the NEET ROB completely.

"Yeah. After we're done with this, let's speedrun through our plans since we can't train for some years." Tatsuya said. 'Sounds like a timeskip, huh.' I thought.

I grabbed Tatsuya's hand before we both closed our eyes, focusing on our abilities. This time, we extracted a large amount of chakra from the Source of Ryūmyaku, large enough to cause us physical damage.

The amount of chakra Mukade used was practically nothing compared to the amount we are using. But the damage that we were receiving wasn't that much, so our Creation Rebirth was more or less keeping up with the damage.

And so, three hours passed.

.....

I opened my eyes, looking around. I noticed that Tatsuya was looking at me with a smile on his face, his clothes were drenched in blood, similar to mine. It wasn't surprising that he was done before me. Although I have more theoretical and practical knowledge, when it comes to the computing power of the brain, he is leagues above me.

"We should change." I said as I used Creation of All Things to change our clothes. I could've used the inventory but that won't clean the blood stains on our bodies.

"I have a gift for you." I said with a smile before tossing a silver ring over to him.

"What's this?" He asked, confused.

I grinned before answering, "Plot Armor."

Tatsuya raised an eyebrow before saying, "System." A hologram appeared in between us.

[The Ring blessed by 'Space'

Rank- E

Type- Defence

The ring is enchanted with a one-time 'Space' authority. If the wearer is in life-threatening danger, the ring will destroy itself, creating a black hole that'll destroy everything within fifty kilometres with the wearer as its centre. That includes all life, matter, time and other concepts. Beings with a much higher level of power can avoid being exterminated.]

"That's one hell of a gift. But isn't the rank too low?" Tatsuya asked with a smile before putting it on his left ring finger. 'That's definitely not the reaction I wanted but at least he's happy.' I thought, satisfied with the result of my hard work. It wasn't easy to create this thing even with the Source of Ryūmyaku. My ability was more or less done within an hour, the remaining time was used in creating the ring for Tatsuya.

As for the rank of the item, we decided to ask the system about it.

[The item is very weak when compared to other things which are blessed by someone's 'authority'.]

"So that's how it is." I said.

"Well, let's start the last phase of our plan." Tatsuya said before getting up. He started walking towards the centre of the Source of Ryūmyaku, or the seal he placed on it.

"Are you sure about this? Unlike Area Seven, we have no grudge against the people of Roran." I asked, feeling somewhat complicated.

"We NEVER had a grudge with the people of Area Seven, to begin with." Tatsuya said with a smile before continuing, "Now that I think about it, even if we hate Doomsday to the bone, we can't deny the fact that we're a lot like him. Probably even worst than him."

I shrugged my shoulders at his comparison. Indeed, the only reason we destroyed Area Seven was that Doomsday created it. We could've easily killed everyone who wronged us throughout our lives after his death, be it the researchers who experimented on us or those who betrayed us and killed our allies since Tatsuya was the strongest esper after Doomsday.

But we decided to kill the last hope of humanity's survival, Area Seven, along with every person living on it, esper or not. In a twisted way, Doomsday could be regarded as humanity's saviour. If it wasn't for him, humanity would've collapsed a millennium ago when espers started appearing.

Do we regret our choices? No. For us, killing someone weaker than us isn't something we would ever regret. Of course, no matter how bad our life was, it doesn't give us the right to kill someone without any reason. If someone stronger tries to kill us for all that we have done, the best we could do is retaliate or run away, we can't justify our actions or blame them on our past. After all, isn't that how life works? There is no place for regrets, the only thing you can do is move forward.

{You two must remember, even if someone hurts you, it doesn't give you the right to hurt someone else. No matter what you guys decide, makes sure to never forget who you are.} I remembered the smile that my sister had when she said those words to me and Tatsuya.

'Who we are, huh? I wonder how she'll react after knowing what we did to Area Seven. The place she died for. Maybe she'll be disappointed? Hate me? Call me a monster like Stella did?' I thought, wondering.

At this moment, I had totally forgotten that the thing Eliana fought for wasn't Area Seven, it was me. Not like it matters anymore.

"You should leave. This'll affect you too." Tatsuya said, snapping me out of my inner monologue.

I waved my right hand in a cutting motion as a slit portal appeared in front of me. It was big enough for only one person to enter at a time.

"That's your ability?" Tatsuya asked, somewhat disappointed.

"Of course not. Just do what you are doing, I'll leave soon." I said, rolling my eyes.

"Fine." Tatsuya said before standing right above the Source of Ryūmyaku. His left eye turned golden as a clock appeared inside it. The clock hands were moving at a high speed, but they were moving anti-clockwise, symbolizing that he was about to absorb time from others.

"Zafkiel."

I watched as a large clock with Roman numerals manifested behind Tatsuya. It was fairly similar to Kurumi's Zafkiel, the only difference being the clock hands. Unlike Kurumi's, which manifest as an archaic pistol and musket, Tatsuya's were normal clock hands.

All twelve Roman numerals on Zafkiel were dull and grey, indicating that Tatsuya lacked 'time' to use any of those abilities.

"Can't you use your own time?" I asked.

"I tried but I can't. Probably because we're ageless?" He answered, somewhat confused. He continued, "I wonder how the ROB was able to affect me like this since I am immune to any ability related to time."

"Maybe because it isn't harmful to you?" I concluded before saying, "Well, I'll be waiting for you above." As I entered the portal in front of me, I appeared five kilometres above Roran, floating mid-air.

Looking down, the Roman numerals on all of the twelve seals that we placed around Roran began to light up golden. Not long after that, a barrier appeared around the country of Roran, blocking any chance that the people had to escape their fate.

Two clock hands came out of the Source of Ryūmyaku, both of them resting at 'XII'.

I knew that it would take some time for him to finish so I decided to play with my new ability.

'System.' I said in my mind before a hologram appeared in front of me.

[Spatial Slicing (Full Potential)

The user can slice through the fabrics of the third-dimensional space, splitting apart the fabric of reality. Any physical matter or energy caught within the severed spatial area will be cut. The attack can also leave behind a dimensional line, which will cause anything that comes into contact with it to be cut as well. Alternately, the dimensional line can serve as a makeshift portal to alternate locations and dimensions.

Since this is a spatial attack that distorts the fabrics of reality, there is no physical defence against it. The blades can appear very quickly, with no lag between the attack and damage.]

'There's no way I can use this with my current strength. Show me what I can do right now.' I wanted to punch the hologram in front of me.

[Spacial Slicing

-Can separate space around the user from a single thing. Be it time, gravity, friction or any other authority as long as the said authority isn't far stronger than the host. The ranger is five centimetres.

-Can create portals to any location that the user has been to. The portals can only be created from the host's right hand. Can't break the barriers between dimensions yet.

-Can...]

I sighed after reading about my abilities. Even if my actual ability is strong enough to slice worlds apart, I can't use it. It's not something like Kurama that would come and kill the enemy when I am pissed. I can't use the actual ability until I am strong enough, no matter what.

3rd Person Pov-

Tatsuya looked at Mikasa as she disappeared inside the portal before his expression returned to normal.

Thud*

He heard the sound of something falling behind him before he turned around. It was a white Ragdoll cat. The cat's skin was crumbling, probably because of some disease. There was no fur on it.

'Such a weak life force? No wonder I missed it.' He thought. He would've noticed it if he wasn't busy with Zafkiel but he didn't since animals naturally had less life force compared to humans. Not to mention that this cat was about to die.

Tatsuya looked at the silver ring in his left hand before he smiled. 'Let's give her a nice gift.' He thought.

Tatsuya walked up to the cat before picking it up and returning to his original position. He placed the cat near him before he crouched down, placing his hands on the Source of Ryūmyaku and extracted a large amount of chakra from it. All of the chakra that he extraxted started merging with his shadow.

He took a deep breath before saying, "City of Devouring Time."

His shadow started spreading at a very high speed as it engulfed the whole Royal castle in a second before moving forward, trying to engulf the whole country of Roran.

After an hour, all of Roran was covered in darkness, and people were gathering around the corners of the country, unable to escape because of the invisible barrier.

Children were crying, trying to find their parents while the adults were running in all directions without any knowledge of how many people have died from being stepped on by them. Their only source of light was the twelve seals that Tatsuya placed around Roran. Many of the citizens were praying, wishing that a God would come and save them, but alas, life isn't so wonderful now, is it?

The only one who heard their cries was Mikasa, who was busy playing with her new abilities.

"Shit, that was close. I almost created a black hole by mistake." Mikasa said as she wiped her forehead. Even if space-related abilities can't harm her, which sane person wants to go inside a black hole?

Inside the Source of Ryūmyaku, Tatsuya was gasping for air as he was drenched in sweat.

'This is way more difficult than creating Zafkiel. At this rate, I can only absorb two hours' worth of time from a single person. How inefficient is that?' Tatsuya thought, annoyed. If he was strong enough, he could easily convert his energy into time using his authority. That would've been way more efficient than absorbing time from other people.

Tatsuya coughed a little before saying, "Let's just roll with it. Time Flies Seal."

As his words fell, the clock that was created throughout the country of Roran reacted. The clock hands that were resting at 'XII' started moving anti-clockwise. The same was happening with Tatsuya's left eye.

Every human inside Roran, regardless of age or gender, started ageing at a rate visible before turning into dust, leaving nothing but clothes behind.

Within fifteen minutes, the cries and pleas of the citizens of Roran were no more. The country was silent, dead silent. Literally.

Tatsuya removed his hands from the Source of Ryūmyaku and said with a smile, "The population of Roran was a little over a million. Considering that I was able to consume two hours' worth of time from each person, it's good enough for now." He now had around 230 years' worth of time. Most of the Roman numerals on Zafkiel were now black, indicating that they were now usable.

Tatsuya looked at the still dying cat before picking it up and placing it over the Source of Ryūmyaku.

'My Creation of All Things isn't able to create living things, but what if the subject is already living?' He thought. He can create a physical body from his ability but it lacks a soul and consciousness. So 'editing' something that's already alive should be possible with a lot of energy.

He thought about creating Artificial Intelligence, but it wasn't successful. The best it could do was follow the already given commands, unlike the robots in his previous life.

He placed his right hand on the cat before the clock in his left eye started moving clockwise. Indicating that he was using the time he had stored. At the same time, he placed his left hand on the Source of Ryūmyaku, using its chakra.

After an hour of hard work, Tatsuya looked at the now healthy cat, sleeping next to him. Unlike its half-dead state, it looked more alive right now. In all honesty, it was kind of cute.

'I wonder if she'll like it?' Tatsuya thought. He remembered that Mikasa once told him that she liked animals a lot when they first met. At that time, he wasn't paying much attention to her, so it was hard to remember.

"Meow~" Tatsuya looked at the cat as she opened her eyes. She now had golden eyes thanks to what he did to her.

The cat walked up to him before rubbing her head with his thigh. He picked her up before teleporting to Mikasa's location. Noticing that he was mid-air, he activated his new ability, blood control, to fly. Unlike before, he didn't need to activate the Ketsuryūgan to manipulate blood. Although the Dojutsu was still there, it was practically useless.

"What's up with the cat?" Mikasa asked while looking at the cat.

"It's a gift for you. Give her a drop of your blood." Tatsuya replied with a smile before passing the cat over to Mikasa. She did what he told her before a clock shape marked appeared on her left hand, just below her wrist. Along with Hikari's slave mark, she was looking more and more like a delinquent.

"It'll disappear after a minute." Tatsuya said with a chuckle. He could've erased Hikari's slave mark while having the seal but that would've hurt Hikari's 'feelings', considering how big of a pervert she is.

'System.' Mikasa said in her mind as a hologram appeared in front of her.

[The Bond blessed by 'Time'

Name-

Rank-E

Type-Bond, Non-fighter

Master- Mikasa

The cat is blessed with a certain amount of 'Time' authority. The master of this Bond can control the amount of time stored within it. It grants the user the ability to manipulate time for 10 minutes. The user can choose to stop, reverse, forward, delete, and slow down time for 10 minutes. Unlike normal time abilities, reversing time, in this case, will also reverse someone's death. The same goes for 'deleting' a certain period, all the parallel timelines will be deleted after that point, something that can only be done by having 'authority' over time. Beings with a much higher level of power can avoid the effects.]

Mikasa was surprised by how overpowered this cat was, but her attention was on something completely different.

'Cute.' She thought while looking at the cat in her hands before petting her.

"What should we name her?" Tatsuya asked.

'So it's a female, huh?' Mikasa thought before answering, "How about Ellie?"

"Your nickname?"

"Yeah." Mikasa said with a happy smile.

'Looks like she's happy with the gift.' Tatsuya thought, ignoring her weird naming sense as he smiled while looking at her before they both disappeared.

****

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A/N- Give me some recommendations for the Chat Room members bruh.

I have been binging a lot of weird shit to collect members.

Also, we'll be speedrunning through the third ninja war. There's nothing much to do about it. Probably some side stories of Pakura and Hikari later on but not now.

Random Numbers Recommendation- 288383.