#1: [転生?] Reborn?

The words "This isn't the last time you will see me rise, brothers" and "See you in a thousand years" was all that he could hear when he tries to focus on something.

Akumu Shiro, a first-year with white hair and black-rimmed glasses who is at the top of his class back at middle school. He looked like he wanted to be alone, isolated from the class, so he didn't really talk or notice anyone in the class. One of his classmates however is a little energetic, Yami Hikaru, a girl with yellow hair, and a pink hair clip, she tried to talk to Shiro but to no avail, but before going home, she went to him again to try and talk to him "Didn't I tell you to not talk to me while I'm in school? How hard would that be?" Shiro spoke "I just want to talk, it's been a year" she answered. Apparently, they know each other.

"This may be my next host" a dragon's soul with blue scales living in a sword said as he snickered as memories of his clan go down by his hands. About 100 generations ago, there was the dragon race that was divided into two factions, light and dark. The leader of the light faction, Shirogane, and the Dark, Ryuujin. The two are brothers alongside six more siblings, Shirogane and Ryuujin are twins but were separated after birth, due to the fact that they are from different factions.

Shiro let off a sigh and went home "I'm home" he said "Welcome back" a female voice welcomed him home "Why are you here?" he asked "Well, dad asked me to drop by and tell you that they're deciding" she answered. Shiro felt his heart stop for a second "Shit, already?" he muttered. "Shall I ready a portal, brother?" she asked "No need Shizuku, I'll do it myself, I can't trust your portal" he replied with a sickened look on his face.

Ryuujin was raised to hate the light faction, same with Shirogane, unknowingly that they are brothers, they clash in the battlefield as wars between the two factions are as intense as their hatred. Ryuujin's thoughts become more and more submerged into hatred and bloodshed the more he fights. One day, a katana rose from the ground in front of Ryuujin, with the name, "Hizume" calling his name to pull it out of the ground. His eye sight left him as the only thing in his eyes is the sword, he pulled it from the ground and it merged with his soul. Another battle went by and Ryuujin killed everyone without regarding who is friend or foe.

In a realm called Hell, Shiro arrived with his sister, Shizuku. "Welcome home, young master, young mistress" a group of maids and butlers greeted them home. A palace is where they live with their father being the current head of the Nightmare clan. "Is father here?" Shiro asked "I apologize, young master but the lord is still in the meeting" a butler spoke. Shiro went to the living room and laid down for a bit, his sister on the other hand went to the garden. "I'm home" his father spoke "Is Shiro here?" he asked one of the maids, they nodded. "What is it?" Shiro spoke rashly while rubbing his eyes. "We need to talk, the council have decided" His father spoke. "The council chose you to marry Akuma's daughter, Akuma Himari" his father explained "Why? Why me?" Shiro confusedly asked "You are to lead the realm after graduating from your earthly studies" his father added "Isn't that a bit too much for me?" Shiro asked once more. After his father explained to him everything, all he could do was bow his head and oblige "What if it won't work?" Shiro asked, feeling uncomfortable, "Well, that is for the princess to decide"

After killing everyone on the battle field, the elders of both factions came together to try and stop Ryuujin from rampaging, light faction leader, Shirogane, and elders, Kurogane, Tensairyuu, and Albion, banding together with dark faction elders, Akibara, Orochi, and Sakura. At the end, Ryuujin was victorious, there was none left but three, Kurogane, Albion, and his own wife, Akibara. The three of them withdrew and planned their next move.

The next day, Shiro went to earth again to go to school, news is, they are going to have a new classmate, transferring from Kyoto. "Akuma-san said she would be coming to our school starting today" Hikaru said with a sad smile on her face. Shiro sighs, "She may just be the transferee that everyone is talking about in the class Line group" Shiro commented 'I bet she's hot' a classmate of theirs sent a message. Shiro walks into class and finds his seat, the homeroom teacher, Itsuo Hyoudo, introduced their new classmate. The guys in the class got hyped up seeing the new student, while the girls just groaned, Shiro on the other hand, had his eyes widened "Hello everyone, I am Akuma Himari, pleased to meet all of you" she said "Hi-chan?!" Shiro said as he stood up. Himari gasped and said "Shi-kun??" "Someone you know?" Itsuo Hyoudo asked "Yes, he's my fiancée" she answered as Shiro's expression became relieved.

The sword followed Shiro silently, floating through the air passing through everything in its way, giving a cold vibe to whomever cross paths with him, Himari and Hikaru on the other hand does not feel it. "This girl is close enough, I shall take her as my new host" A dragon's soul with red scales that gives off an uncomfortable vibe. Akibara, the dragon of hellfire, the demonic dragon of destruction.

After classes, Shiro told Hikaru to go ahead of him as he has some unfinished business. He went to the rooftop with a letter in his hand "Care to explain this Himari?" Shiro asked "Well, they everyone in the realm knows that we are engaged, but the two of us never really saw each other, you never came to my coming out party" she explained "Look, I was busy at that time, and it's not like you went to my coming out party" Shiro argued. The two never saw each other, but had to act due to eyes watching them. Himari sighs, Shiro scratches the back of his head "So, what now?" Shiro asked knowing what she will answer. "We have to keep this act up, we'll just help each other find our partners, it's not like I want to become your wife" Himari answered "I thought as much" Shiro replied while smirking.

That night, Shiro's dream was invaded by the sword "Pull me out" says the sword, "Why should I?" Shiro asks "Out of all the heirs, you are the weakest, and yet, you are chosen to be the next king" it replied, Shiro got confused, confused why a sword knows such confidential knowledge "Pull me, and you will unlock your potential" the sword insisted. Smoke filled his mind, a dragon appeared "Child, I will make you stronger, pull the sword out and I will lend you my power, combined with your potential, you will become the strongest" the dragon spoke "Who are you?" Shiro asked "I am Ryuujin, and I am a dragon, the sword's name is Thousand-warlord bloodshed, I reside in this blade" he explained. Wanting the fighting abilities he never got, he pulled the sword and felt power rushing through his veins. Upon waking up, Ryuujin spoke to him "Another thing, you are now my host, but I see you are not normal, there is someone else living within your soul" it said, confused, he asked about why that is but to no avail, Ryuujin was out of his reach.