『賭ケグルイ』河本ほむら×『サツドウ』なだいにし、最強タッグが贈る暴力奇譚！ 賢く生きることがモットーの高校生・秋田正道は、不良に絡まれているところを女子高生・六道せつなに助けられる。「僕にも喧嘩を教えてくれないか？」打算と憧れから六道に喧嘩の指導を依頼する秋田だったが、突如六道は秋田に牙を剥く。「暴力こそこの世界の唯一のルール」と断言する六道との出会いから秋田は“暴力”の世界に足を踏み入れていく！
Masamichi Akita, a high school student whose motto is to live wisely, who meets Setsuna Rikudou, a high school girl with a violent supremacist attitude. Akita is saved by Rikudou when he is tangled up with a delinquent, and is attracted by her overwhelming strength, asks her to teach him how to fight. However, Akita is devastated by Rikudou, who asserts that “violence is the only rule in this world.” Akita’s encounter with Rikudou leads him into the world of “violence.”
