Based on the comics by the late Nekojiru. Contains 23 animated shorts aired TV Asahi Network's show "Bokusho Mondai Boss Chara Ou." and 4 unbroadcast episodes.

The official website for the Tiger & Bunny anime announced on Friday that the Pacifico Yokohama's National Convention Hall of Yokohama is hosting special Tiger & Bunny concerts with a new short anime on September 19 and 20. The franchise's composer Yoshihiro Ike is personally conducting the "Sternbild Orchestra & Band" for live performances of music from the television series and two films.

On a small hill in a neighbourhood in the outskirts of Tokyo, there was a little park. There were six close girls who always used to play there together since they were small. But when they were fourth-graders, they had to change schools. The six of them made a "promise to bury a time capsule", but in the end they were not able to keep this promise and separated eventually. Four years later and grown up, they now live their own lives. While all of them have their own troubles and worries, the days pass and one day, a miracle happens to them.