Within Japan's corporate landscape, Teiai Group stands out as a prominent entity. Yukio Tonegawa, a man of remarkable presence and keen intellect, serves as the trusted aide to Chairman Kazutaka Hyodo. When tasked with overseeing the ominous 'Game of Death,' a project involving debtors, Tonegawa swiftly organizes Team Tonegawa to tackle the challenge. However, he must navigate through a series of obstacles posed by the unpredictable chairman and disloyal subordinates, eventually facing a demotion. As Team Tonegawa grapples with a myriad of issues, the spinoff series 'Mr. Tonegawa - Middle Management Blues -' unfolds, stemming from the popular manga 'Kaiji' with a staggering circulation exceeding 20 million copies.