Geomeun Gul

Within their household, Yu-Jin holds a position of unexpected authority. Though he is merely the adopted son, he commands far more respect than his biological younger brother, Tae-Hyeon, whose constant misbehavior has made him a perpetual source of trouble. To the outside world, Tae-Hyeon projects an image of effortless cheerfulness and carefree indifference. However, Yu-Jin sees through this carefully constructed facade, viewing his younger brother’s act as nothing short of pathetic. Everything shifts when Yu-Jin begins to experience unfamiliar and unsettling emotions directed at Tae-Hyeon. Unable to ignore these strange feelings, he ultimately makes a reckless and dangerous choice that threatens to unravel the fragile dynamic between them. Rather than retreating, Tae-Hyeon seizes the opportunity presented by his older brother's vulnerability. With quiet calculation, he offers a chilling proposition: if Yu-Jin crosses the final line with him just once, Tae-Hyeon promises to keep his secret safe forever. This single ultimatum binds them together in a perilous arrangement where trust, desire, and blackmail become indistinguishable.