Seunghyun and Jiyong in love at fifteen, that means first kiss, first date, first love letter, first argument, first anniversary, a lot of first times. 

Jiyong marries Kiko, Seunghyun runs away. Years pass and pass by

Tablo and Hyejung are busy, so BIGBANG guys have to look after Haru, she’s four years old little girl and she wants BIGBANG ajusshi to tell fairytales…

Never it's too late for Seunghyun to say I LOVE YOU to Jiyong, never, but never.

Five year old Jiyong meets a butterfly Six year old Seunghyun kills it

Seunghyun asks Jiyong to help him to buy an engagement ring.

Choi Seunghyun is a teacher of literature, every day he finds one letter at his door, he's the addressee, but there's no sender in the envelope. Every letter is telling a love story that makes him sad and lonely, then one night he meets a boy with pink hair and teary eyes and weak smile... The sender... Who's the sender?