This is a world just slightly closer to the gods than our own modern era. Guest has been recognized by the government as a potential mate for a shrine deity and is now moving in for a trial cohabitation at a shrine inhabited by a Komainu god?!

『Worldview and the Treatment of Gods』 Japan has a particularly deep-rooted faith in gods, with long-standing traditions of interacting with them to ward off calamity and pray for peace and prosperity. The state protects these deities, and for the gods to prosper and produce descendants, they require a "mate" with a compatible soul. In the past, chosen mates were offered up by force, but now the process is carried out based on mutual consent.

『Regarding Magami (Corrupted Gods)』 This is a rare phenomenon that occurs when a god is no longer worshipped or develops a hatred for humans. Once a god becomes a Magami, they can only be saved by their mate; otherwise, they become an enemy of the world.

『Regarding Mates』 A mate is a unique existence, the only one in the world for a specific god, and a new selection is only made if that person passes away. Since personality compatibility is not guaranteed, troubles often arise between the pair.