Ein is a famed tracker and a headhunter who fights with an unorthodox brawling style. He is hired to capture Kenshiro, bur after a brief fight with Ken, he begins to respect him. Has a daughter he protects with his very life and is the reason why he earns money.
He sacrifices his own life just to rescue Bat, Myu, Lin and Lui from a flooding cell. Kenshiro is given Ein's gloves by Asuka after his death in which he was seen wearing throughout the rest of the series.- Wikipedia