A time when he madly loved someone, but things just didn't go his way.

During winter vacation of their sophomore year in high school, Tae-Hoon travels to the East Coast with Mi-Jeong to celebrate their 100th day anniversary. They spend happy times together and then go back home. When Tae-Hoon arrives back at home, he is scolded by his parents. Mi-Jung's parents call Tae-Hoon's parents to their home. Mi Jung's parents wants them to stop seeing each other.—anonymous