Sekai de Ichiban Tsuyoku Naritai! (anime)

Sakura Hagiwara and Erena Miyazawa are the leading members of a popular idol group Sweet Diva. One day, Erena is injured by the attack of a female pro-wrestler Rio Kazama during the recording of a TV program. Sakura gets mad at Rio and gives her a dropkick. To avenge Erena, Sakura enters the female pro-wrestling matches.