After an accident that has left you with a PTSD, your father hires a bodyguard for you.

Mingyu is your bodyguard, and when you see an ex at a charity event, it brings back sad memories.

Jeonghan loses a game and is forced to go buy snacks during a thunderstorm. When somebody collides into him, he finds himself protecting her.

Seungcheol has been listening to your rants on top of the MBC building for quite a while, and one day he plucks up the courage to ask you if you're alright.

Jeonghan receives a call from his best friend in high school, only to find out about what had happened to her. After a trip to a museum with a blind girl, he begins to see things differently.

In which Jeonghan is the son of a baker, and you're a regular customer he can't help but smile at differently.