世界でいちばん強くなりたい! (Sekai de Ichiban Tsuyoku Naritai!)
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.