He was only staying at his brother’s place, yet he stepped into a world he was never meant to enter. By day, she is the elegant Mrs. Xu in everyone’s eyes. By night, at the edge of the kitchen, the bathroom, the sofa, she closes the distance— slowly wearing down his self-control. “Why are you so nervous?” “We didn’t do anything.” But when footsteps sound outside the door, when promotion, desire, and secrets all close in— he realizes too late that this line has already been crossed. The more they restrain themselves, the closer they fall; the more they leave unsaid, the deeper they sink.