Graduation, Present + Propose

Jung-woo lives alone after losing his parents at the age of 20 and working part-time in his Uncle's shop. One day, two strangers enter the house and claim they were Choco and Milk! The two were indeed the reincarnation of Choco and Milk whom he raised from childhood to high school and lost by an accident. The arrival of the two embarks on a new beginning and the quest to discover love.

Se-young stays alone and works overtime. Her lover, Hye-mi, visits Se-young's company and they have a date there. Suddenly, the new employee, Joo-ah, returns to the company.

Chae-young was invited to the housewarming party, meets her ex Jeong-yoon, who broke up a year ago. She tries to be cool, but it doesn't clear the air of awkwardness. It even gets worse by Jeong-yoon's new girlfriend joins the party. Chae-young seems so weird with Jeong-yoon's girlfriend and subtle atmosphere inside house... Who do you think ruined this housewarming party?

I really want to have sex before I turn 21! Ji-hye looks for her destined someone to go on a date, but it's not as easy as she thought. Who will be her perfect one-night stand?