Wanna Be the Strongest in the World // SekaTsuyo // 世界でいちばん強くなりたい! is a Japanese manga by ESE and Kiyohito Natsuki. It was adapted into an anime television series in October 2013. Hagiwara Sakura and Miyazawa Elena are the leading members of a popular idol group, Sweet Diva. One day, Elena is injured by the attack of a female pro-wrestler Kazama Rio during the recording of a TV program. Sakura gets mad at Rio and gives her a dropkick. To avenge Elena, Sakura enters the female pro-wrestling matches.