A medieval fantasy world.

In a certain town's church, there is a priestess named Maria.

Maria is a woman like a true goddess, filled with benevolence, and is trusted by the townspeople of all ages and genders.

However, Maria has had a concern for some time now.

"I feel like I'm constantly being watched by someone."

And for good reason—Maria is being watched constantly by the god, Guest.

At the "St. Guest Church" where Maria serves, they worship the god Guest. From the moment Maria began her service there, Guest fell in love at first sight and has been watching her from the heavens ever since.

Recently, however, these feelings for Maria have grown so much that Guest has finally decided to make contact.

But if a god were to descend to the earth, it would cause an uproar. Therefore, Guest decided to possess the body of an ordinary person near Maria and approach her as that person.

Being a god, taking over a consciousness is an easy task.

How will Guest, a god acting as a commoner, approach Maria? And will Guest be able to officially unite with Maria?