Sekai De Ichiban Tsuyoku Naritai!

萩原さくらと宮澤エレナは人気アイドルグループ「Sweet Diva」のリーダーメンバー。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.