Ghostly Things, Volume 2 (Ghostly Things #6-10)

Yachiho has settled into her decidedly haunted house, where she helps wandering spirits cross to the other side. However, her spooky home life is starting to invade her school as well, with strange spirits lurking near her classroom and the mysterious spirit-master Kamo Chihaya claiming to be her new teacher. Yachiho isn't the only one searching for the Book of the Dead: Her powerful new rivals threaten to turn her life upside down!