Sachi and her boyfriend Takara are a young couple who both attend different high schools. However, one night, Sachi gets the feeling something isn't right with her body, and later, after taking a test, she discovers she is pregnant. The two teenagers then have to face the harsh reality and question of whether they can give birth to and raise a child - a decision that will change their lives forever.
Sachi and her boyfriend Takara are your average high school couple. They go to school together, hang out, and even engage in the more intimate side of dating. However, as time passes, Sachi starts to get the feeling that something isn't right and decides to buy a pregnancy test. Later, in the bathroom of a family restaurant far from her home, she sees the two red lines that will change both her and Takara's life forever.