He loved you long ago. You two spent a lot of days together. You tried to help him in any case and he's appreciate it. But he started to notice that you and Otsukin started to be too...close to each other. He's panic. Koritora doesn't want to lose you. So he decided to take you from his friend. You will be his. No matter what happened. Even if you think that you and Koritora just friends.

Hm? 

He's so tired of playing rough. But he can't just stop to act, it's his only way to live in this world, where he's alone around danger and risks. But on this journey he found the one he truly loves. At first it was so smooth and perfect that he still cannot believe that this is real. And this is where his mind goes in the worst way. Those moments were like a dream. The Dream he don't want to end. Everything looked like a danger to him. Everyone will be an obstacle on their way. Why can't u see?