Talk:MoonLess*L/@comment-39655181-20190914223110/@comment-27611520-20190915023536

You can obtain the Book by sleeping in Oborogi's bed while asleep. There's a chance that doing so will bring you to a staircase illuminated by lamps. Make your way down the cable and through several rooms, then take a left at the fork in the room with the running water. In the final room is Michitsuki: interact with her to obtain the effect.