Chapter 03 Pain and promise.

I looked over my savior and to my surprise he was very familiar. A tall young man with medium-length, messy black hair tied back into a low ponytail. He has thin eyebrows and sharp, dark blue eyes and wears a haori with two different patterns: one solid red and one geometrically patterned with green, orange, and yellow. I can't be mistaken, he was one of the Demon Slayer Pillar named Tomioka Giyu. As I looked in dazed, Giyu drew his katana and started exhaling air then calmly said.

"Water Breathing Style - First Form: Water Surface Slash. " (Giyu)

As he said that, he approached the monster with unfathomable speed and slashed it's neck. He then calmly put his katana in it's sheath.

THUD

THUD

The monster head together with it's body fell on the ground unable to respond the attack Giyu did. The demon disintegrate into ash. Looking at this scene I was convinced that One Above All reincarnated me on Demon Slayer Universe but the question is why here?

'Didn't OAA (One Above All) said sending me to a new multiverse, why here? Does this means that the multiverse I am in is related to human imagination. If so, who managed this multiverse?' (Shin)

While I was thinking of some complicated things, Giyu then walk towards me and pick me up and carried me like a sack of potato. He then ask me where I am from in which snapped me from my thoughts. Remembering Kaina, I asked Giyu to rushed towards the house of Kaina. As I explained to Giyu that Kaina might be attacked by demon, Giyu rushed out the forest while carrying me. As we arrived at Kaina's house I saw the door was already opened. I immediately got down from Giyu's shoulder and rushed inside. As I rushed inside I saw blood in the wooden floor. My heart kept pounding hard as I took step closer to Kaina's room. Part of me already know that she's already done for but the other still keep denying. As I entered Kaina's room which was already opened, I saw a tall young man with a moderately toned and muscular body, who is of a notably pale complexion and possessed unusually long, pointed nails that appeared to be stained a pale blue. His hair could appear either silver or a pale golden blond, and he wore it parted to his left, the shorter parts around his face seeming to flare out to either side around his head, curving backwards with one strand left down his face to fall between his eyes, while the longer parts were left to drape centrally down his back in a thinning spiral. Biting Kaina's neck, while blood continued to drop in the ground.

In my rage I rushed forward without care to save Kaina, but Giyu pulled my arm while drawing his katana. He started enhailing air again while the demon who notice our arrival threw Kaina's bloody figure away like trash. Giyu then attacked him.

"Water Breathing Style - Seventh Form: Drop Ripple Thrust. " (Giyu)

As Giyu thrust his Karna towards the demon's neck with a breakneck speed, but the demon calmly blocked it with a gold fan. The demon then deflected Giyu and started talking.

"Hey. It's rude for you to attack me while I'm still eating. You Demon Slayer Corps should learn some manners. " (Demon)

"Hey... Escape from here." (Giyu)

Giyu said while keeping an eye on the demon. I carried Kaina and was about to run out but Giyu pulled me again. As he pulled me out, icicles shot towards where I was going.

"It's rude for you to take away my meal." (Demon)

Giyu then whispered to me.

"Put her down she's already beyond saving, she'll only slow you down. When I attack him, runaway with all your might and never look back." (Giyu)

I didn't put Kaina down but tighten my hold on her and prepared to run away from this place. Giyu then prepared and attack.

"Water Breathing Style - Tenth Form: Constant Flux."

As Giyu continuous attack the demon I rushed outside the house carrying Kaina whom still breathing. I rushed away from the house towards the village that was 30 minutes walk from the house. As I continued running, Kaina seemed woken up. She wanted me to stop but I was not listening to her as I continued to run with all my might. She then pulled my hair to stop me from running. I slowly stopped and put Kaina down as she was adamant on putting her down. She then looked at me with a smile. I was looking at her while tears falling from my eyes. I know that she will die if not she'll become a flesh eating demon.

'SYSTEM!!!! I NEED YOUR HELP. PLEASE HELP HER. WITH THE INFINITY STONES I KNOW YOU CAN HEAL HER.' (Shin)

*Host, system cannot do that as this world has strong suppression which would destroy the host. As explained this world has a strong suppression of a power beyond a certain level. One's the world detect such power, suppression change into elimination as the world would recognize such as anomaly.*

"Shin." (Kaina)

Kaina called my name while removing the tears from my eyes.

"Don't be sad. I am very happy since the day I met you. I know that I am beyond saving. I am blessed that I met you but I regret leaving you. I know it's hard for you but promise me. Promise me that you'll live your life without any regret." (Kaina)

I stared and smiled at her while saying.

"You will not die Kaina so please don't say such things." (Shin)

As I said that I continued begging for help.

'SYSTEM!!!!!!!!! PLEASE SAVE HER. I WILL DO WHAT EVER YOU WANT BUT PLEASE SAVE HER. I DO NOT WANT TO LOSE HER SO PLEASE I'M BEGGING YOU.' (Shin)

As continued begging, Kaina's breathing became slower. I panicked as she's closer to her death.

'SYSTEM!!! I DON'T CARE ABOUT WORLD SUPPRESSION. YOU SAID THAT YOU WOULD SUPPORT ME IN MY JOURNEY BUT WHY WOULDN'T YOU HELP NOW?' (Shin)

*....*

"IF YOU DON'T HELP ME THEN I RATHER DIE THAN CONTINUE MY JOB." (Shin)

I shouted in anger as I saw Kaina stopped breathing. I lay Kaina down and bashed my head on the ground.

BANG

DRIP

"Arg..... " (Shin)

My head ache and blood started to drip. As I was about to wash my head again, the system which was quiet suddenly spoke.

*Since host is adamant on helping her to the extent of threatening the system, system would offer it's help. All the system can do is use the Soul Stone to preserve her soul inside the pocket universe since she is already dead.*

'Do it.' (Shin)

*Reminder to host: Do not to threaten system again and prepare for the backlash of suppression. System would no be available for some period after this.*

As system said that, my chest suddenly glows and a yellow bright light shone towards Kaina's body. Unimaginable pain came on me as if all my body was burning, bones are crushed and head splitting ache.

"AAAAAAAAAAAHHHHHHHHHHHHHH!" (Shin)

I shouted with all my might as unbearable pain came over myself.

'I have to endure it. For her sake and for mine. ENDURE IT ME!!!!!!!!!!!!!!!!! MAXIMUM EFFORT!!!!!!!!!!!!!!!!!!! ' (Shin)

I endured as I looked at the floating orb like fire came out from Kaina. The orb was ducked into my chest and the light from my chest started to dim. As the light disappears, so does the pain which I was suffering. My vision became dark as I fell down next to Kaina's body and fell asleep.