"you toy with them. you don't take them seriously, or else they'll toy with you and break your heart." that's what jay believes in until yang jungwon, a person who can have anyone wrap around his fingers, came and change everything.

A one night stand happens between a 17 year old girl and 23 year old guy. 17 year old Mia went to a club with her friends only to end up losing her virginity to 23 year old Cole. Mia sneaks off the morning after and she ends up pregnant but doesn't end up seeing the man that caused her to get pregnant until one night.