Black Dragon?

Tokyo Revenger is from an Anime.
It's not mine.
Credit to Ken Wakui.

The ship are,
Shinichiro x Wakasa x Takemichi

Takemichi did dye his hair, but not blonde. He dye the tip of his hair dark blue and his hair is down. Takemichi is a crybaby in this story, and also a bit of a fighter.

I just start this book in the end of March 2022, I haven't found that much information about the first generation of Black Dragon, only certain. So this book would be likely have different information.

In this story, Takemichi would avoid fighting as much as he could since he has injured his left shoulder. So sometimes Takemichi would lose his grip in left hand.

Takemichi is 14 when he first met both Shinichiro and Wakasa, both of them are 16.