Sunggyu is actually a very shy and awkward person. He just graduated from a university and decided to apply as a teacher in a random school (he don't know why he applied there, it's just that).

While on the other side, Woohyun is an easy-going student who is into sport -- he's one of the school's basketball team player, but he's also a diligent student who always tries to do everything with all of his ability.

Daehyun and Youngjae are Woohyun's bestfriends, they're also part of the school's basketball team. Daehyun is an immature and playful guy that loves to eat. He really likes to tease Youngjae, his bestfriend or we can call it his soulmate. And Youngjae, he is a very patient guy and other than Daehyun, he sometimes prefer to be silent and doesn't talk much but he also likes to joke around with Daehyun because Daehyun will always reacts and responds to whatever he said.

And on this rainy day, they love each other.