When Saigou Homura, a young man with a peculiar talent, receives a mysterious email, his life takes a fantastical turn as he is whisked away to a world governed by the whims of Gods and Demons through Gift Games. In this realm, he forms an unexpected alliance with the charming Kuro Usagi, embarking on a grand-scale Gift Game. Joined by fellow summoned individuals Ayazato Suzuka and Kudou Ayato, as well as the reunion with Izayoi Sakamaki after five years, they face the formidable challenge of the Game of Fighting Gods and Buddhas, an ordeal that entangles even the real world itself!