The Daimon 2 [ザ・代紋2]

The second in the series about a former businessman who rises in the world of the yakuza. Monjiro Tashiro sets out on his path. As war with the Hamaike clan escalates, Ishimaru, the chairman of the Ishinokai, is shot dead by an assassin. Monjiro's girlfriend is also taken hostage.