There are two important points that you must learn about this story.

1. What happens when five guys who live together fall for the same girl who also happens to be their new roommate?
2. Do arranged marriages run smoothly...and end happily?

Characters:

• Park Jiyeon - the daughter of a wealthy businessman who's trying to find an apartment to hide from her father (and a possible arranged marriage). Loves to eat and loves to have fun, is nice to everyone but sometimes too nice.
  
• Shin Dongwoo or Shinwoo - the eldest in the apartment, is somewhat a person of a closed personality and doesn't like the idea of a girl moving in to their house. Loves to cook and loves to be left alone most of the time.
  
• Jung Jinyoung - the boy of every girl's dream: sweet, caring, and sometimes a bit naughty. He was the one who introduced the apartment to Jiyeon.
  
• Lee Junghwan - The sweet and innocent cute duck in the apartment, always lightening up the mood when needed. Also loves to have fun like Jiyeon.
  
• Gong Chansik - the maknae of the apartment, not always vocal about his feelings but his expressions show it. Very sweet and caring as well, but more on the innocent side.
  
• Cha Sunwoo - a happy-go-lucky but mysterious guy who's into fun and partying; absentmindedly uses cuss words and is sometimes mean but not as mean as his Shinwoo Hyung
  

• Kris Wu - The son of a very wealthy Chinese businessman, set off to marry Jiyeon but he doesn't want to; even if he's already developed feelings