In 1924 Yuri killed 57 people as a spy before going underground as the madam of a small brothel. There, she encounters an orphan whose family was murdered and holds the key to finding a large sum of money reported missing by the Imperial Japanese Army. But with an army of soldiers after them, they must fight to survive.

Hidemi Boku and Miruku live in a town with no future in sight. To chase their dreams and leave this place behind, there's only one way out—striking it rich! They form a club called "All Greens" and embark on a forbidden extracurricular adventure…