Bishoku ke no Rule

Struggling to make ends meet for her single mother, Miho, Reina Kirigamine embarks on an unexpected journey when she answers a friend's suggestion to use an online dating site for profit. Her first interaction reveals Reina as a shrewd negotiator, yet she is quickly manipulated by Yuma Watarase, an unscrupulous businessman and her uncle, who exploits her innocence in a public restroom. Overwhelmed by guilt and powerless against Yuma's advances, Reina grapples with the harsh reality of her family's reliance on his financial support.