Life is a gift, but people have always possessed the question, "what happens to us after we die?" Uraji Michii, a seemingly normal high school student, has the answer to that question. He has a special ability that allows his spirit to drift into the death realm, but this can only occur by one certain trigger: the nightmare. A reoccurring nightmare causes Uraji's soul to switch realms, but he does not understand why this is happening to him, and why the nightmare continues to come back to light. Uraji is socially nonexistent, but later meets some individuals that will have him wonder about life, death, relationships, and trust.