(feel free to disregard any of the following)
Honestly, the onenronen translation of Dangan Ronpa (Super High School Level) is my preferred one, so to match in with this, Super Gensokyo Level seems like the best fit.
An idea if you use Sayaka Maizono as a character is for Kyouko Kasodani to take her place. Both characters are cheerful and energetic, and both characters appear to have something burdening them, and hide this away from the other characters.
Nitori Kawashiro could work as a substitute Chihiro Fiujisaki, without the cross-dressing element.
They both seem to be shy, and both are the most technologically advanced of the group. Some aspects don't exactly match up, but if we were to try and find point-for-point replicas of each character, it'd be very difficult (someone else can probably find a better comparison, but I'm throwing out my own thoughts).
(feel free to disregard any of the following)
Honestly, the onenronen translation of Dangan Ronpa (Super High School Level) is my preferred one, so to match in with this, Super Gensokyo Level seems like the best fit.
An idea if you use Sayaka Maizono as a character is for Kyouko Kasodani to take her place. Both characters are cheerful and energetic, and both characters appear to have something burdening them, and hide this away from the other characters.
Nitori Kawashiro could work as a substitute Chihiro Fiujisaki, without the cross-dressing element.
They both seem to be shy, and both are the most technologically advanced of the group. Some aspects don't exactly match up, but if we were to try and find point-for-point replicas of each character, it'd be very difficult (someone else can probably find a better comparison, but I'm throwing out my own thoughts).
I always welcome ideas that fans come up with to enhance the gameplay, and try and give the players a better experience of the game. First off I would like to thank you for commenting and giving your idea for this game.
Before the creation of this thread Mystia came as a first for Sayaka Maizono because... They both sing. xD Though researching into Kyouko Kasodani being like you said, a cheerful and energetic Yokai. Though seems to be under some stress and mumbles to herself despite her well-behaved appearance is an excellent match.
I agree that Nitori should be Chihiro Fiujisaki but I could mix some things up with the crossdressing as a funny joke. xD just like that one Hot Spring scene in Dangan Ronpa.