Unlock the sweet daily life of the idol devil and the energetic girl living together! Li Jiaqing, a 16-year-old orphan girl, temporarily lives in Min's house to find her relatives. She discovers that the landlord is super idol Min Shengying - the bad boy who had a conflict with her! The national idol instantly transformed into her own devil, and her tragic "slave life" began. But as time goes by, the devil who tormented her gradually becomes gentle, and a two-way heartbeat quietly sprouts. The two hold hands through hardships, but Li Jiaqing discovers that Shengying has her brother's token DUAL on her body. In the sequel, the piano prince Min Jae-seok joins, and the mystery of brother and sister traps the three of them. They are pulled in the tangle of not wanting to hurt each other. In the end, after passing the test, the two realized their true feelings and overcame obstacles to achieve success. The whole process was filled with sweetness and abuse, and the sugar content exceeded the limit, making people unable to stop!
