Mirai no Fu Fu Desu Kedo?

The two close friends from childhood Honori and Chisaki reunited and became classmates in a girl's high school. They haven't seen each other for 3 years since Honori moved away from the neighbourhood. Chisaki is the one that always wants to be treated as an adult but could never take care of herself, while Honori is always by her side looking after her.