The anime's story takes place in the year 2020, near the Hareza Tower building plaza. This is an area under development currently but is expected to be completed by 2020. A girl gives chase to an owl she sees in Ikebukuro. Over the course of the anime, the audience witnesses the girl grow and learns about the charm of Ikebukuro, a place where "everyone can be the lead player."

(Source: ANN)