Found this manga by looking for some good yuri to heal the soul. Started off okay, and I considered dropping it just to read it later. Then it got weird. Then it got weird again. Then it got weird again again. And this processed continued until I just read it all in one go. I enjoyed it alot, especially when Manabu started to just go crazier and crazier as she went deeper, really gave me a steins gate vibe.