This reminds me a lot of both Cross Channel and Tsukihime. Can't help but think this would have been better off ending at chapter 46, but Japanese media tends to be big on the open ending. It's a decent read despite that, albeit grim for everyone involved.
@Kendama That's fair, I thought I'd ask since DT has been around for a long time in this era of translation and I've read a lot of the stuff you've TLed. Keep up the good work.
Pacing was off on the reveal but overall I really liked the relaxed supernatural SoL feel. There's a few modern manga doing it, but most of them have a harem element.