To 18-year old Kang-yi, her friends So-young and Ah-ram are everything. Wanting to go somewhere foreign, she runs away from home with them, only to find a strange side of themselves and the balance of their friendship also tips in a weird way. Although they left home as one, but they eventually return home as three. Kang-yi wants nothing more than going back to how they were but that’s easier said than done…

Su-kyung lives with her daughter Yi-jung. They don't quite get along, though. Su-kyung is too hot tempered, while Yi-jung is slow and passive. After having a fight one day, Su-kyung runs over Yi-jung, who thinks she did it on purpose. Their clash ends up in court.

Hong-i, who suffers from debt, brings her mother Seo-hee, who is in a nursing home, to pay off her debt.

Lesbian couple Sun-woo and Hee-suh buy a small apartment, which they’ve put everything for. But when Sun-woo loses her job and injures her leg, their relationship begins to sour while Hee-suh is sorely responsible for paying the mortgage and interest. Their stress level reaches a fever pitch when a foul odor starts to emanate from downstairs.

Seo-yeon, a promising high school hurdler, trains tirelessly and dreams of joining a professional team. When her father, a truck driver, suffers a stroke, she borrows from a relative for her father's medical expenses, pledging to repay the loan once she joins a professional team. When that falls through, she must make a fateful choice.