Due to various personal reasons, a group of Yun Tae-o’s friends move into his house, where they experience love, friendship, and everything in between.
On his 20th birthday, Yoon Tae Oh gets his grandfather's house but soon finds that living by himself doesn't come with all the perks he had imagined.
Han Song Yi, Seo Do Hyun, Oh Ga Rin and Choi Hoon all end up going to Tae Oh's place but he's not home. Tae Oh gets alarming news about Song Yi.
Without knowing how it happened, Tae Oh gets stuck having housemates and learns more bad news about Song Yi when he goes home for dinner with his family.
Tae Oh contemplates what he overheard and is convinced he knows what it means. To show her appreciation, Ga Rin throws a party, which Do Hyun attends.
Tae Oh keeps misreading Song Yi, exacerbating the confusion between them. Do Hyun wants to know more about Song Yi's relationship with Tae Oh.
Tae Oh makes a breakthrough with Ryu Se Hyun but is shocked when he sees her house. Do Hyun and Song Yi try to figure out where they stand.
As Tae Oh's complaints about Song Yi's mysterious boyfriend grow, she becomes cross when she learns his crush is someone she knows -- and doesn't like.
After Tae Oh proposes the housemates take a road trip, they're joined by Do Hyun and Se Hyun. Tae Oh sees song Yi with someone he didn't expect.
Tae Oh accepts the situation between Song Yi and Do Hyun and tries to offer advice, but Do Hyun is adamant about doing things his way.
Tae Oh gets an ultimatum and realizes something about himself. Song Yi announces her plans to move out after Hoon and Ga Rin decide to leave the house.
Do Hyun and his father have a candid conversation about the family finances. Song Yi heads to Jeonju and is surprised to run into someone she knows.
Song Yi comes to realize that Tae Oh has always been there throughout her life. Do Hyun gets upset when Song Yi doesn't answer her phone.
Song Yi stops by the house to return something to Tae Oh, who reminds her how things used to be between them. Tae Oh's family tries to hide a secret.
Hoon and Ga Rin have news for the group. Song Yi decides to talk to Tae Oh's father. Tae Oh ends up going on an outing with Song Yi.
Tae Oh tells Song Yi about something odd he noticed at the restaurant and resolves to find out the whole truth from his father.
There may be more changes in the house, as Tae Oh and his friends learn the true meaning of friendship, family and love. Song Yi has a job interview.
