Doona!

College student Lee Won Jun moves into a sharehouse, and meets a beautiful yet strangely familiar housemate — but they get off on the wrong foot. (Source: Netflix)

Gradually, Lee Doo Na gets acquainted with Won Jun’s social circle. He later celebrates Doo Na's birthday, attempting to get to know her better. (Source: Netflix)

Alone in her room, Doo Na feels unsafe — like she’s being watched. Won Jun and Kim Jin Ju go out to see the cherry blossoms, but it starts to pour. (Source: Netflix)

Won Jun and Doo Na grab a late-night meal, experiencing their first paparazzi moment. Much to his disdain, Won Jun accidentally reunites with an old foe. (Source: Netflix)

A confused Won Jun confronts Doo Na about the sudden kiss. New housemates move into the sharehouse, making the place livelier than ever. (Source: Netflix)

Doo Na secretly visits Dream Sweet’s showcase event. Later, she invites Won Jun on a spontaneous trip to her childhood home. (Source: Netflix)

After the return of a person from her past, Doo Na makes a rash decision. Won Jun later confronts Doo Na in a moment of pain and frustration. (Source: Netflix)

As Won Jun and Doo Na's relationship flourishes, a chance at a comeback comes knocking on Doo Na's door — but so do the tough choices. (Source: Netflix)

Won Jun moves into a new apartment and focuses on his studies. Meanwhile, Doo Na’s career soars as she finds newfound confidence. (Source: Netflix)