++If a girl who has been learning swordsmanship in the mountains since she was a child gets too excited and falls off a cliff when she masters swordsmanship, causing herself to be reborn as the daughter of the Miyamoto family, a Japanese kendo family, and unexpectedly joins the girl group AKB48, then how does she find her seriousness in AKB48? ++In addition, this article is a semi-fantasy article, focusing on the entertainment industry, and those outside the entertainment industry can be ignored.