Wanna Be the Strongest in the World

Wanna Be the Strongest in the World (世界でいちばん強くなりたい!, Sekai de Ichiban Tsuyoku Naritai!), is a Japanese manga by ESE and Kiyohito Natsuki. It was adapted into an anime television series in October 2013.

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