Takeshi (Ikken Yamamoto) returns to Tokyo after serving two years in prison. He aims to go straight, but in order to do so he must first dive back into the criminal world to earn money. Catching up with his past yakuza contacts, he starts a business selling personal data for fraud schemes. Encouraged by his best friend Yasu (Keisuke Mitsui), Takeshi enters a venture capital business and turns himself into an investor. His path, however, is not an easy one – Takeshi soon finds himself dragged back into the underworld, with the Oshima-Kai, the largest criminal group in Kanto.