Kenju burai-chō Nukiuchino Ryu
While working in restaurants, boutiques, and nightclubs, Yang made money by smuggling drugs in partnership with the Hotta Gang (堀田組, Hotta gumi), who ran a boxing gym. However, since the group is under investigation by the Tokyo police, Yang is about to cut ties with the gang. On the other hand, Hotta Gang crime boss Juzaburo Hotta secretly summons Ryuji and asks him to release information on a big deal that will be carried out without the gang, but he avoids answering on the spot. One night,  members of the Hotta Gang attacked the Yang's men just after the deal was broke off. Colt Silver killed the Hotta's Gang members, but on the way back, the police appeared and persistently interrogated Yang's close aide and restaurant owner, Zhāng, who was in charge of the transaction.