Aoshima and Yukino are coworkers who have never exchanged a single word. One evening, their paths unexpectedly cross at a bar, leading to a surprising turn of events. When Yukino receives a call reminding her of a friend's upcoming wedding, she accidentally blurts out that she broke up with her boyfriend six months ago. Desperate to avoid awkward questions, she makes an impulsive plea to Aoshima: pretend to be her boyfriend for just one day at the wedding.
To Yukino's shock and relief, Aoshima agrees, though he secretly has his own motives. As they embark on their temporary charade, Aoshima, who initially showed no interest, finds himself unexpectedly drawn to Yukino. She, in turn, finds herself navigating the unpredictable nature of a mean younger tsundere boy. Their contract love blurs the lines between pretense and reality, leading them both into an unforeseen romantic entanglement. What future awaits their fake relationship as genuine emotions start to bloom?
Other names: 青島くんはいじわる, Aoshima-kun Is Mean