Katari, a young girl who dreams of becoming a novelist, writes a love letter to a boy at her school. Unwittingly, she is creating a "short story" that will move a little girl's heart.

When Fuuka hit her second year of middle school, puberty kicked in. Now she's really tall and has huge boobs. Due to her hairstyle, her classmates call her "Saipu", after the cyclops. Her affection for her older brother was cute when she was a little girl and said she wanted to marry him. Now it just freaks him out, since she's decided she's adult enough to follow through on her childish promises. (Source: MU)

Originally streamed on the official Youtube and NicoNico channels and later included on BD/DVD Vol.5.

Part II of Sword Gai: The Animation.