A story about Cha Woo Sol (played by Kim Min Seok), a victim of school violence who was detained in a juvenile prison due to an accident, meeting Jeong Do Hyeon (Wi Ha Joon), a mixed martial arts champion, and gradually break through his limits one by one....

Nam Se Hee is a single man in his early 30’s. He has chosen to not marry. He owns his home, but he owes a lot on his mortgage. Meanwhile, Yoon Ji Ho is a single woman in her early 30’s. She does not own a home and envies those that do. She has given up on dating due to her financial struggles. Yoon Ji Ho begins to live at Nam Se Hee’s house. They become housemates....