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.

Three years has passed since the events of the first series. Hiromi continued training with her coach and became Japan's junior champion. Their common profits have also contributed to the coach being chosen as the first trainer of the Japanese Selection of Tennis and is arranged to head a trip with the youngest members of the team to USA. The relation between Hiromi and its trainer is narrower at personal level but it exceeds the teacher-student bond with great difficulty. (Source: AniDB)

A special episode focusing on the story of Merm4id and Rondo, including a new, joint performance by the two groups.

An evil monkey, Specter, has escaped a circus, using a mind-controlling device which allows him to become smarter and have access to controlling the monkeys. Kakeru is called over by a professor in order to capture all the monkeys, including the one's who's controlling them: Specter.