One day at school, Soo Ah's boyfriend, Tae Yeon, prepared a surprise for her, for there 100th day of dating.

Just as Soo Ah and Tae Yeon were celebrating suddenly, a classmate picked up the cake and accidentally threw it at you instead of Soo Ah.

You stood there frozen in shock for a second before you grabbed your makeup bag and ran to the bathroom. Suddenly Lee Suho, the cold hearted guy at your school, put his jacket over your head and covered you while taking you away from all the chaos.