Koyomi Araragi is an aloof boy who holds a strange, supernatural secret which inadvertently leads him to others with similar stories. Gods, spirits and afflictions can be pesky things, taking important memories or causing unusual tendencies – a fact that Koyomi and others are unfortunately aware of. Using the help of an eccentric homeless man, Koyomi is able to help new friends he meets along the way with their own paranormal conundrums…