Kokuro

After receiving a message from Rin ASHIBA, the girl he's in love with, Sora ISOSHI goes to a classroom at his high school where Rin had asked him to meet. But when he gets to the classroom, he finds himself alone. Thinking it was a joke, he leaves the room, but once outside, in what should be the corridor of his high school, he sees instead a large white room where, sitting on a throne at the back of the room, is Rin ASHIBA.

She tells him that he has been chosen by the Tower to try and climb it and become its new king.

But as he wasn't born into this world, he doesn't have the ability to use what all the inhabitants of the planet are able to use, the Ushi.

So Sora is given a strange power. A power with which he will try to climb the Tower, trying to fulfil Rin's wish and thus become the new King of the Tower.

The Tower King

Sora followed Jarek in silence. The mountains behind them receded with every passing minute, and the rocky, inhospitable environment gradually gave way to earth and vast fields. The tension that had built up throughout their conversation showed no sign of dissipating. With every step he took, Sora could still feel the pain of his burn, the sensation of having brushed against something dangerous, something he didn't understand. 


He glanced at Jarek, who was walking ahead of him with disconcerting ease. The latter seemed so sure of himself, as if he knew exactly where he was going, at once relaxed and terribly serious. Sora, on the other hand, was not so certain. His mind was full of unanswered questions, and this feeling of incomprehension was not pleasant. 


“Tell me,” Sora began, his voice calmer, but tinged with a curiosity he couldn't suppress, "why are you staying on this floor if you're already Gold rank? You could easily go up a few floors if you wanted to." 


A Wound to Hide