Osu!! Karate Bu question

Anybody familiar with the manga "Osu!! Karate Bu"? If so, could somebody give me character descriptions for these characters:

Suenaga Zen
Ryuuryuu / Koryuu
Tanaka Hiroyuki
Kou Ryuun
Rick Powered
Sakuma Jujirou
Sotogawa Tetsuya
Kira Takashi
Nakai Touru
Jinrai Isao

They can be breif or extensive, it does not really matter. Any assistance is appreciated.

In Suenaga Zen, Keitaro and Kinta stumble upon a mysterious shrine, deep witin a jungle. As they enter the shrine, the world outside becomes dark. They then have to fight Ili-etoyou, a large black daemon.

Ryuuryuu is about Kinta only, and goes further into his background as a professional swordsfigheter in the french Tot-Albs region.

Oh fuck.. Here I was making the most epic troll ever, and then I reread your request, and see that you wrote "character descriptions" and not "chapter descriptions".

Well well, good luck with your "I want facts so I go to 4chan"-project!