The manga series Alive: The Final Evolution (Saishū Shinkateki Shōnen) was written by Tadashi Kawashima and illustrated by Adachitoka. It ran from 2003 to 2010; the final instalment was published shortly before Kawashima’s death. The first volume covers the first three instalments.
Small and timid, Yuichi Hirose is a natural target for his school’s bullies. His only defense is provided by his friend Taisuke Kanou. Taisuke is an orphan, which would likely make him a target too … if it weren’t for Taisuke’s determined pugnaciousness. Taisuke never hesitates to step between Hirose and his tormentors, despite the fact that Taisuke always loses the scuffles that follow.
It turns out that all Hirose needs to do to end his torment is to tap new potential.