Ookuninushi is a famous god amongst the gods. He is very dramatic, flashy and overreacts but is rather charming.
Because of his popularity, he has attracted the eye of many female gods, including Otohiko (who isn't actually female).
Ookuninushi also doesn't seem to care too much for feelings seeing that he had not even cared about Kayako's nor Otohiko's crush on him.
The wind god is head over heels for him, although he doesn't seem to return the affection.
She is most probably a friend, seeing that he lent his lucky mallet to her.
Kayako is the human god that he deceived to a competition in the hopes of making Nanami stronger before she went to the God Summit. After Nanami agreed to do what he asked, he agreed that he would meet with Kayako. However, after seeing her in a Human God Magazine, he develops feelings for her and plans to make a date to see her. Stating that he didn't choose to fall for her, it just happened. However, Nanami forgot to tell Kayako about it, and it's unknown if he got his date with her or not.
Queen of the Netherworld and Ookuninushi's grandmother.