Doona!

College student Lee Won Joon moves into a sharehouse, and meets a beautiful yet strangely familiar housemate — but they get off on the wrong foot.

Gradually, Lee Doona gets acquainted with Won Joon's social circle. He later celebrates Doona's birthday, attempting to get to know her better.

Alone in her room, Doona feels unsafe — like she's being watched. Won Joon and Kim Jin Joo go out to see the cherry blossoms, but it starts to pour.

Won Joon and Doona grab a late-night meal, experiencing their first paparazzi moment. Much to his disdain, Won Joon accidentally reunites with an old foe.

A confused Won Joon confronts Doona about the sudden kiss. New housemates move into the sharehouse, making the place livelier than ever.

Doona secretly visits Dream Sweet's showcase event. Later, she invites Won Joon on a spontaneous trip to her childhood home.

After the return of a person from her past, Doona makes a rash decision. Won Joon later confronts Doona in a moment of pain and frustration.

As Won Joon and Doona's relationship flourishes, a chance at a comeback comes knocking on Doona's door — but so do the tough choices.

Won Joon moves into a new apartment and focuses on his studies. Meanwhile, Doona's career soars as she finds newfound confidence.