Sugarless (2012) - シュガーレス
Based on the manga series "Sugarless" by Masami Hosokawa. The rule at Kujima High School, known as the “Windmill”, is the law of the jungle. There is fierce fighting among the males who vie to reach the top. Shiba Gaku, a first year student, does nothing but spends his days fighting to get there.