Keita Tatsumi

Ryuji Inahara, the heir to the Atami Yamazakiya family, subsequently placed the group under the control of the influential members of the Guretai, known as the "Yokohama Four Heavenly Kings," and the Inahara group quickly expanded its influence from Yokohama to the Tokaido region. The world of yakuza then enters the era of Ryuji Inahara and Masao Tashiro, the third generation member of the Yamaga-gumi.

The Kuronuma Group, a huge mahjong organization that controls the political and financial circles of Japan from behind the scenes, has been growing rapidly by taking in underground professionals one after another with the overwhelming strength of the second generation leader, Nishimura Hiromitsu. In the midst of all this, a young pinch-player, Matsuoka, who respects Sakurai Shoichi, faces off against a low-level member, which leads to a confrontation between Sakurai and Nishimura...

Ryuji Inahara changed the name of the Inahara-gumi to the Inahara-kai, and accordingly unified the emblem of the Inahara-kai. Then, in 1961, Inahara-kai opened a new headquarters office in Roppongi, Tokyo. Further incidents and conflicts await Ryuji and the Inahara-kai.