is a shōjo

Shojo

The term refers to manga marketed to a female audience roughly between the ages of 10-18. The name romanizes the Japanese 少女 , literally: "little female". Shōjo manga covers many subjects in a variety of narrative and graphic styles, from historical drama to science fiction — often with a strong...

 manga series written and illustrated by Yuu Yabuuchi

Yuu Yabuuchi

is a Japanese manga artist who specializes in shōjo manga. Yuu Yabuchi's most famous works are Mizuiro Jidai, Shōjo-Shōnen, and Naisho no Tsubomi. The main focus of her manga are the emotional and psychological growth of pre-teen girls and boys and early romances between them. Her works are popular...

. This story is about a young girl who is dealing with the start of her "love life" with her boyfriend while she is growing up and discovering the hardships of a relationship.

Story

Haruru is normal girl starting middle school. Her life is pretty normal except for the fact that she usually has any contact with her boyfriend, Nagi, who goes to a famous middle school and needs to study all the time. And that puts her uneasy, not knowing how to talk to him. Her life start to be more difficult when she is asked to be the manager of athletic club by Sou, an old friend of her best friend Chika.

Meeting new people and getting to know the better she learns more about herself, love and her friends... But not everything goes as smoothly as we want to, because there's a jinx at Haruru's school - if a couple sees the blue train at 6 am together, they'll be together forever! But if a couple sees the blue train at 10 pm together, they'll break up!

So... what will happen after Haruru sees the blue train at 6 am with Sou?