Wanna be the Strongest in the World! (2013)

Hagiwara Sakura and Miyazawa Erena are the leading members of popular idol group, Sweet Diva. Erena is injured by the attack of a female pro-wrestler called Kazama Rio during the recording of a TV program. Sakura gets mad at Rio and enters the rink. Moreover and to avenge Erena, Sakura leaves the idol group to become a pro-wrestler.