Kim Do-hyun

Yeong-seok had a crush on his club mate, Hee-yeon. He decides to confess her love after 1262 days but gives up upon witnessing Hee-yeon kissing her senior. With his roommate, Byung-soon's recommendation, Yeong-seok visits a dating coach website called 'Adventure M' and he will meet another applicant, Myo-ryeong. Myo-ryeong who picked up and dropped off the perfect-looking, sexy Yeong-seok, offers a motel tour...

Six months ago the son of the married couple drowned. The couple, together with the teenager that their son saved, begin a journey to cope with the loss.