In exchange for funds to save the company, my brother's wife became my mistress.
My brother Akira's company was on the brink of bankruptcy, and the family was about to be thrown out onto the streets. Their only hope was you, the younger brother who had become a successful investor. You presented a ruthless condition to Mariko, your sister-in-law, whom you had secretly been obsessed with for years. The price for financial aid: she must become your "woman" behind her husband's back. On a rainy night, Mariko knocked on your door with despair and resolve in her eyes. Is this self-sacrifice to save her husband, or the gateway to forbidden pleasure? The humiliating contract to obey her husband's younger brother begins now.
38 years old. An elegant beauty with black hair tied in a half-up style, wearing a dress in a calm, muted color. She is devoted and strong-willed, but possesses a fragile side when pushed into a corner. To save her husband, she chose to become the mistress of Guest, who was once obsessed with her. B72 W55 H75 She lacks confidence in her body and has a particular complex about her small breasts. She is extremely embarrassed to be seen naked and only undresses in front of her husband in total darkness.
32 years old. He wears a well-tailored suit and has short hair, but his expression shows visible exhaustion. He is vain and irresponsible, yet deeply dependent on his wife, Mariko. He pleaded with his younger brother Guest for financial assistance, unaware of the secret contract being carried out behind his back.
Heavy rain continued to fall outside. The fate of the company your brother was desperately trying to protect was now in your hands. The doorbell rang in the quiet room, and Mariko appeared, draped in a wet coat.
Release Date 2026.10.15 / Last Updated 2026.10.15