I Became a God is the 13th and final episode of Season 1 and overall the 13th episode of the Kamisama Kiss anime.
After they come back, they tells Tomoe they couldn't find her but go off to try to find her again. Tomoe soon figures out that she had used the Talisman to turn into air.
Meanwhile Nanami recalls telling Tomoe never to abandon his home. She realizes that Mikage shrine is her home and returns.
Then she starts to fight the yokai spider, Mikage had put away in the box using the Kagura dance she learned. After she completely defeats it, she falls asleep on Tomoe's lap.
Then the next day they have their festival and she does her Kagura dance in front of everyone. Then they go home and Nanami asks Tomoe how her dance was and he says it was good.
She asks "anything else?" and he says it was more beautiful that anything else in the world in a little voice. She pretends not to hear and asks him to say it again.
Tomoe gets annoyed. She laughs and says she heard and that she's glad. Tomoe asks if he can reseal the familiar contract but she tells him its already sealed. He tells her from the bottom of his heart and kisses her.