[2] Based on the internet novel of the same title and written by Guiyeoni, Do Re Mi Fa So La Ti Do is a touching love story with bittersweet elements.

Jung-won wears a funny dragon suit, while working at the amusement park, and pours soda on Eun-gyu, because of his taunts.

Jung-won then starts to develop feelings for Eun-gyu, who is the lead singer of a band called Do Re Mi Fa So La Ti Do.

With an odd twist of fate, Jung-won went to the band's rehearsal room and meets a familiar person from her past, a boy named Hee-won.

One day, Jung-won witnessed a hit-and-run and reported the license plate to the police but the driver turned out to be Hee-won's father.