Kida and Makoto share a powerful bond. The former outcasts spend a decade fighting to both the apex of the underworld and legit society so that Makoto can propose to a certain rich woman, which would be an epic scheme to change the world.

Kida and Makoto had been inseparable since childhood, their bond only deepening when they befriended Yocchi, a new transfer student. Orphaned and without families, the three formed a tight-knit group, growing up together. Years later, both Kida and Makoto were drawn into the criminal underworld. Kida became a skilled negotiator, while Makoto rose to power as the CEO of a trading company with a dark side. Together, they plan an epic scheme.