Summary:

Sachi Koaku has always been known for her beautiful amber-colored hair, the color inherited from her late mother. On her first ever day in a prestigious high school, she is approached by a classmate, Leon, who invites her to join the "Money Game". Of course, she doesn't agree to that. But when the Kohaku family's jewelry company goes bankrupt and she is sold for 100 million yen, her only hope is to join the game and win the prize: 100 million yen. Let the game begin!

(Summary by Vally- Proofread by Xzel)