What does the ending of the cartoon mean?

In order to realize the wish of his old friend Hemo, Onuchi decided to give Nai Nai and Tomoe a year to consider whether to turn Tomoe into a human being. Nai Nai and Tomoe spent the last year of Nai Nai's life as a land god in complicated feelings, and then she became a human being, and also ushered in her own high school graduation.

Extended data:

"A vibrant girl is destined to be a god" is a cartoon work created by Suzuki Juliet, serialized in Flowers and Dreams magazine. This cartoon tells the story of the heroine Nai Nai running away from home, meeting a mysterious man and becoming a land god.

Introduction:

The work tells the story of the heroine Nai Nai's gambling father who ran away from home after he owed a debt, and helped a mysterious man who was chased by a dog under a tree in the street. The mysterious man knew her experience and said, "Then I'll give you my home!" " So the homeless Nai Nai went to the "home" with a grain of salt and found that it was actually an abandoned shrine for a long time. There is also a fox demon who claims to be Tomoe, the fox demon who serves the land god, but the mysterious man turned out to be the land god. The mysterious man gave her home, that is, even the position of the land god was given to her, so the heroine began to be the land god. ...

References:

Baidu Encyclopedia-A dynamic girl must be a god.