When An Mo's new novel written with an antique pen passed down from his family was about to be completed, an accident occurred while writing, causing the villain in the novel, Besei-kun, to appear in the real world.In the process of her trying to send him back to the novel, their relationship gradually warmed up, and she also found her confidence after her popularity had been sluggish.

However, when she realizes that she falls in love with Beesi-kun, she must face the inevitable separation.