Shin
Kenshiro's initial adversary in the series, Shin was Kenshiro's friend and rival, who was taught in the martial arts style of Nanto Seiken, specifically Nanto Koshuuken (南斗孤鷲拳) or "Lone Eagle Fist of the South Star", whose practitioners are able to pierce flesh with their bare fingers. He had secretly fallen in love with Yuria, Kenshiro's lover and had slowly become insanely jealous. Jagi soon corrupted Shin, and convinced him to take Yuria for himself. Shin promptly challenged and defeated Kenshiro, then tried to convince Yuria to love him by wounding Kenshiro with his fingers, giving Kenshiro his distinctive seven scars in the shape of the Big Dipper. When Yuria finally gave in and said she…