A man with no money uses a certain credit card which grants him access to the surreal Financial District, where he engages in a battle against a man named Sōichirō Mikuni, fighting with mysterious creatures, and is defeated and ends up committing suicide the next day. Meanwhile, a boy named Kimimaro Yoga is working two part time jobs to raise money for his future. One evening as he is trying to study for a pop quiz, he is approached by a mysterious man named Masakaki, who announces that Kimimaro has been chosen to become an entrepreneur at a mysterious bank. The next day, Kimimaro is surprised to find 500,000 yen deposited into his account. Whilst wondering what he should do about it, Kimimaro considers using a small amount so he can attend a kegger with his friend, Hanabi Ikuta. However, as he withdraws the money, he is once again approached by Masakaki, who places him in a taxi bound for the Financial District.