A life-changing story of a man who has lived as a loner his entire life. Jae Shik begins to live together with a child with a hearing-visual disability, as they change each other's lives and try to find a way to communicate.

While his girlfriend is away on a trip, retired assassin Bang Ui-kang is tasked with looking after her friend's 17-year-old daughter. After a street attack, Bang Ui-kang becomes embroiled in a murder investigation and dangerous trafficking gang.

Hyo-seon is diagnosed early menopause, and his son Jinsu calls for a MacBook. One old cow that would be the money in the house.

Aspiring filmmaker Hyunsu offers Miju a role, and they fall in love. As time passes, Miju grows tired of his dreaming while she struggles at work. A fight leads them to experience different July 7ths, leaving their future uncertain.

Ku-mok, who lives like a hyena, changes his cell phone at a convenience store. He tells Hwa-young to come to his office to find the replaced cell phone.

Se-jin, a high school student, becomes pregnant and gets ostracized by her family and school. While wandering the streets, she meets Joo-yeong, an experienced runaway, and tries to get an abortion with Joo-yeong's help.

Two boys are becoming real adults during a turbulent time as they experience a world that doesn't go their way.

Hwa-young is an 18-year-old student living alone. Her friends call her "mom" and use her house as their place to hang out, but don't really include her in their clique. Hwa-young pays particular attention to one of the friends, Mi-jeong.

The seventeen year old 'Yeong-jae' was safely sent away to the group home 'Isaac's house'. He is old enough to leave now, but doesn't want to go back home to his irresponsible father.