A remote control found in a study room turned her into the most secret prey in his palm. Lin Wei, a cool senior from the foreign languages department, outwardly aloof, was locked beneath her skirt by an inescapable smart chastity device. Zhao Yu, an unremarkable male student from the mechanical engineering department, the moment he accidentally pressed the remote, discovered that every tremor of her body was dictated by his thumb. From anonymous commands to public discipline, from secret vibrations in class to forced orgasms on the old desk late at night, he gradually trained her into instinctive dependence—and amidst fear and shame, she found herself actively seeking his touch. When the original owner of the remote—her ex-boyfriend—returned to school to reclaim control, the triangle of their relationship suddenly tensed. The remote was smashed in a violent struggle, but Lin Wei returned the key to his control to Zhao Yu: not to regain freedom, but to surrender herself completely. "The key is in your hand, the lock is on me. Do you want me to unlock it?"