Raise the Flag for Me X Atobe!

A Mary Sue heroine whose brain has been wonky since childhood vs. the heaven-blessed, super-handsome Atobe-sama Hanamiya Yui is the kind of girl everyone envies. From childhood onward, she's been able to speak fifteen languages, play ten instruments, and excel academically, with impeccable manners and outstanding abilities... But Atobe Keigo knows she's never been normal. For example, right now "Atobe, I heard that if you're sincere enough, you can jump from a hundred meters up and land safely~" "Stop! You lunatic, let go of me!" . Ever since she was little, souls from all kinds of other worlds have transmigrated into Hanamiya Yui. They always think they can steal her body and date the world's most outstanding people, but Hanamiya Yui's body automatically gets rid of them every time, leaving behind all sorts of strange 'knowledge.' ① To become an outstanding heroine, you need a childhood friend. [Atobe Keigo shivers] ② You also need an outstanding backup love interest. [Kuroko Tetsuya: Hmm, thanks for the yearlong meal vouchers to the Totsuki restaurants] ③ You need a whole order of knights! [The Rainbow Squad, bought at a high price, + Prince of Tennis: ???] ④ You need to conquer the world? [Hanamiya Yui ponders. This one might actually work.] . Notes: ① Writing a blurb is so hard. Basically, it's a story about a natural-born Mary Sue and Atobe-sama tormenting each other from childhood to adulthood. ② A crossover with some older anime series. ③ Sorry, I'm going to torment Atobe-sama. I'll always love him. This time, he's destined to be the funny one. Theme: See past appearances and keep falling in love with your soul