After Nanami's father runs away due to gambling debts and she is evicted from her apartment, Nanami meets a strange man hanging from a tree because he is being chased by a dog. The man's name is Mikage. She saves Mikage from a dog and tells him her story. He gives Nanami his house as a thank you for saving him. When Nanami arrives at Mikage's home, she is shocked to see that it is a shrine for worship. She is then greeted by both Onikiri and Kotetsu who are the keepers of the shrine. She then meets Tomoe, Mikage's familiar, and she learns that Mikage used to be the Earth Deity of the shrine and has bestowed upon her his mark so that she may be the new deity. At first Nanami is reluctant, but as she lives with Tomoe, Onikiri and Kotetsu she begins to understand and works hard in her new position as the Earth Deity.