Synopsis Jo Seok-Moo (Cha Tae-Hyun) graduated from a prestigious university, but he pursued his dream of becoming a musician rather than finding a traditional job. Jo Seok-Moo did not become a musician and because of his advanced age, he could not land a decent job. He then began working at a security service company. There, he met Kang Whee-Roo (Bae Doo-Na) for the first time as his customer. They have been married for 3 years now, but Jo Seok-Moo asks for a divorce. They do not have very much in common. Jo Seok-Moo has a stubborn personality and enjoys spending time alone, while Kang Whee-Roo is easy-going and has a positive personality. In front of them, the married couple of Jin Yoo-Young (Lee El) and Lee Jang-Hyun (Son Seok-Koo) appear. Jin Yoo-Young is Jo Seok-Moo’s first love.