The name is either: In front of the pure light and dark or Innocent light and dark side first part. I will try to translate it but could so send me a pdf with the raws. Would make it easier!
From the cover, the title is prolly Seijun Dark Side/Innocent Dark Side. I believe a group called peach.kyoudai is working on it, ch 1 isn't up yet but you can find the group on mangadex and stalk em til it comes up lmao
The written japanese if that helps you on your journey:
清純ダークサイド
https://nhentai.net/g/349094/
It's only in japanese and chinese and I wanna read it so badly ┗( T﹏T )┛been looking for it everywhere and I found the RAWS I jus let can't read them cause they aren't in english. Is would appreciate it so much!