The true target audience right there.
I feel like these last few chapters are really starting to finally show the author's true colors. They're so obsessed with this whole idea of being turbo down bad for a teen but not touching her so that they can then be called so amazing for not being a pedophile. (Congrats, have a medal). Now all that's lacking is for her to move away for a year, come back when she's technically an adult and then they hook up and we went from pedo vibes to grooming.
It's the central flaw of this manga - how rather than just dealing with this whole case of a loner adult sheltering a teenager, it just HAS to also make sure to highlight her as cute as possible and how nice of a guy he is for not touching her. This sort of stuff is just simply unnecessary and makes it come off as the author fetishizing the whole thing. If we were being serious about the topic, then there wouldn't be any focus on him not touching her, it'd just be some story of an interesting circumstance (ofc the whole premise as a whole is bs anyways, since if he wasn't a PoS, he'd have just turned her in to the cops.)
Anyways, sorry for the negativity but wanted to get it out there. I'm just around to see what the author's endgame here is