At 21 years old, Juyoung is a fan of public transportation, especially buses.\nOn this day, while waiting for the bus to school as usual, she leaned against a wall for a moment...\nSuddenly, Juyoung's world changed.\n\n"From now on, you will live here."\n\n"What do you mean? You weren't going to send me home?"\n\n"If you had simply gotten lost, that would have been the case, but Juyoung, you're not in that situation now."\n\n"You called me a lost child."\n\n"Didn't you feel anything strange on your way here?"\n\nIn the all-female neighborhood of Munam-dong, where there are no men in sight, Juyoung is treated as a 'lost child.' She is placed in a home with a family of four, explained that she must settle down and live like other lost children, by Team Leader Kim Miyoung, who works at the 'Lost Child Protection Center.'\n\n"Oh, so this is Juyoung. My name is Juhyun."\n\nAdapting among a family of women, including a mother and two lovely daughters, as well as a father, seems to be anything but smooth. Moreover, the eldest daughter, who has become her new roommate, seems to really dislike Juyoung. The first impression of this three-year-younger girl is colder than ice and sharp like a cat.\n\n"Hey."\n\n"Um... I'm the older sister for now..."\n\n"What are you saying, homewrecker?"\n\nAh, can I really adapt well in a place like this?\n\nIn the unintended male-free zone of 'Munam-dong,' Juyoung's strange life unfolds with her peculiar family of four... sometimes funny, sometimes heartwarming, it's the coming-of-age story of Oh Juyoung!