I can see how a more 'childish'/immature woman would've been fun, considering her mature voice but a whole ass high schooler???? Wtf. I don't understand why there are so many mangas like this. It's damn creepy.
https://www.anime-japan.jp/en/activities/ajranking
So you can copy paste the link easier (*´ω｀*)
Voting is super easy, so definitely go give it a try!!
This has to be one of my favourite stories on here so far. It's unusual, but the BDSM aspect is done pretty well compared to other mangas/manhuas. The way they dealt with self harm isn't awful either. I have to say they delve into pretty gritty shit and don't make a mess of it. Plus the characters aren't generally likable, even the main character feels like a proper character within herself which is rare. I like them because they're both bitches but they're not JUST bitches.
Plus the artstyle is stunning, a lot of people seem to hate it, but it's fucking unique, compared to usual styles, this one conveys the characters and the tone so well. If you're looking for something unique and different I recommend this a thousand times over.
It's weird that it's been so long since this came out and there hasn't been much similar stuff (gradual relationship buildup, high school style) I mean bloom into you did it pretty well too. Been years since I've read it but I remember it fondly, time to read again