Travel back to Japan and become a high school student named Kamiyagawa. Look around - Hanako-san squatted in the toilet waiting for someone to knock on the door; The rip woman wanders the streets with scissors in hand; Miss Mary's urging calls rang incessantly; The howling and barking of dogs in the village never ceases; Gu Shou Bird is looking for a child who has long since died; Qingxing Lantern smiled and instigated passers-by to play with the Hundred Ghost Lantern...... In such a world of strange talk and demons rampant in Honkai, Kamiyagawa set a small goal for himself: "Defeat all demons and monsters and become the supreme co-master of ghosts and gods." ”