Kyosuke Murata, a third-year student at Kita High, lives with his mother. He is a quarrelsome and single-minded man. Kyosuke's real father was Shozo Murata, the head of the Murata group. Kyosuke, who is devoted to quarreling in love, is involved in the conflict between the yakuza organizations, the Kanazawa-Murata group and the Matsuyama-Date group because of his birth! Kyosuke Murata's turbulent youth begins now. A representative work of Motomiya's hard-line manga.