Synopsis: Ensemble

Coming into the family... Bohm with a spring name heads towards the police station to deliver fresh undergarments to his diligent dad, Detective Ghim, who has been working non-stop for 10 days. While there, he catches a glimpse of a girl by the vending machine and hopes to cross paths with her again. Mahnsoo, a young boy with an unusual and solitary past, becomes the sole witness to a crucial criminal case. To ensure his safety during the investigation, he must disguise himself as a girl and reside with Detective Ghim's family. On starting his new life with the family, he reunites with Bohm, but cultivating a bond with his distant new brother proves to be difficult.