HEARTBEAT || CHOI SAN FF

choi san is a playboy and a bully in their school until he met kim yuji his world turn upside down but he didn't accept his feeling at first. He was afraid at falling in-love again because of his past.

Kim Yuji is Kim hongjoong's Lil sister and he was pretty protective towards her. Will he let choi San to be with her or will their friendship torn apart because of her?

Will they follow their heartbeats? or will they reject that feeling for their own sake?