Contractual Romance with a Younger Man: His Schemes and Devotion

To save her family, she enters into a marriage contract with her childhood sweetheart, who is five years younger. She thinks it’s a cold transaction, never realizing that he has planned every detail: the debt amount is what she used to get as pocket money, the fridge always has the sugar-free yogurt she loves, and even the fountain pen he uses to propose is the very one she casually lent him twelve years ago. His obsessive secret love has finally drawn to a close. He has waited 3,726 days.