Cuckolder and Cuckold

Ryouta has harbored deep, unrequited feelings for Yuna since their high school days. His quiet devotion is shattered when his older brother—a notorious womanizer—decides to make Yuna his latest romantic conquest. Unable to stomach the idea of the innocent young woman being manipulated and toyed with by someone so callous, Ryouta resolves to take drastic action. Driven by a desperate need to protect her, he devises a plan to claim her first intimate experience before his brother can. Under the guise of offering her "training," Ryouta begins a secret physical relationship with Yuna. What starts as a calculated intervention to shield her from his brother's predatory intentions quickly evolves into something far more complicated. As their clandestine encounters continue, the fragile foundation of deception threatens to collapse. When Yuna eventually uncovers the true nature of Ryouta's lessons, she will be forced to confront the reality of his motives, leaving both of them to navigate the emotional fallout of a bond built on secrets and stolen moments.