Sandara Park have to take over her best friend, Park Bom's class due to the latter's maternity leave. There she meets the infamous Kwon Twins, Kwon Jennie and Kwon Hanbin. Many teachers have given up on the two and let them do what they want but dara's not having any of it. Dara made the twins go out of her class and the troublesome duo reported to their father about the said mistreatment. "Miss park?" Their father raised a brow, remembering his friend's wife.

Hayi's been a fangirl since birth but she was well-behaved so she can't fathom when an obnoxious idol thinks she's a sasaeng especially when she's not even an ounce bit interested in him or his group. Charismatic leader? him? more like catastrophic!