14 sai no haha

Miki Ichinose, a second-year student at a prestigious junior high school, lives with her mother Kanako, a part-time waitress, her father Tadahiko, a real estate agent, and her little brother Kenta.

Miki realizes she's pregnant and nervously visits a gynecologist but panics and runs out; she can't tell Satoshi, the baby's father, and pretends everything is normal; her mother senses something is wrong and suspects pregnancy.

Miki gathers her courage and tells Satoshi she's pregnant, leaving him shaken; Kanako and Tadahiko inform Satoshi's mother Shizuka that Miki is expecting and that the father is Satoshi.

Just before the operation, Kanako finds Miki, who fled the clinic, and says she's firmly against the birth; Miki can only cry at the harsh reality of giving birth; Tadahiko scolds Satoshi as he struggles with guilt and Shizuka urges him to study.

Miki's wish to keep the baby shocks her classmates, while teachers move toward expelling her; with her parents, she visits a clinic, where Haruko warns Miki that giving birth at 14 is dangerous and the hospital may not be able to help.

Hatano's article exposes Miki's pregnancy; Shizuka prepares to confront him and tells Satoshi to stay home, but he goes to keep his promise to Miki; at the clinic, Miki learns it will soon be too late for surgery and decides again to give birth.