Ranker's High

Ranker's High (ランカーズ・ハイ) is a manga series written and illustrated by Nakajima Ryou. It is serialized in Shounen Magazine (Weekly).

Plot
In order to repay his father's debt of five hundred million yen, high school student Fuchigami Tatsuya must fight in a violent, no-holds-barred underground fighting tournament called MAD, in which the loser of a bout always dies.