Season 1

Shota meets a mysterious girl dressed in a mail carrier's uniform, named Fumika. Fumika, comes to deliver a letter to Shota's friend, Ayase, who's father was recently killed.

Shouta's body is found, and Asuna decides to leave by train. However, before she can leave, Fumika delivers a letter to Asuna from Shouta.

Sen, Kotake, and Nojima, playfully discuss jumping to their deaths. Later, Sen kills himself and Sen's father takes drastic measures to learn about his death.

Fumika attempts to deliver a letter to Ran, a high school tennis player. Ran's mother walked out on her as a child to live with another man and refuses to take the letter.

Fumika is assigned to deliver a letter to a cat. She runs into Chiaki, another mail carrier, who is also trying to deliver to the same cat.

Koichi becomes victim to internet bullying and begs his classmate, Shunsuke for help. When Koichi dies, Shunsuke gets bullied himself and finds it difficult to go on living.

Natsuka's sister Haruno lands an editors job for Kirameki Furikawa. Meanwhile, Kaname meets with Natsuka to learn more about Fumika Mikawa.

While Kaname and Haruno lock up Kirameki, Natsuka watches as Fumika easily removes the bullet and repairs her clothes. Fumika then reveals her true identity.

Fumika, Kaname, and Natsuka go visit Fumika Kirameki in the hospital. Later, Chiaki invites Fumika on a trip.

Takehiko is asked to take care of a little girl named, Fumika while visiting a relative's house. Having left his job recently, he takes her out to have fun.

Fumika awakens from her coma and is greeted warmly by Kaname and Natsuka. Meanwhile, Chiaki learns what would happen if the two Fumika's meet.

After reporting her father's abuse to the police, Fumika becomes a sort of celebrity. Fumika and her friends find it hard to adjust to the mail carriers absence.

A rumor is spreading in the school about the curse of Koichi Kikukawa, but the shigofumi the students are receiving from him may be fake. Suzune tries to befriend Fumika.