Ji-eon, at the age of 25, is experiencing stress, exhaustion, and financial difficulties. During a temporary job, a mistake results in her serving as the personal assistant to the renowned actor Doyun Nam for a single day. While venting out her frustration on a doll, she discovers that it possesses extraordinary powers to manipulate Doyun Nam's choices as per her desires. Consequently, she seizes the opportunity to turn the tables and assumes the leadership position.