Once upon a time, there was a shrine where a Guardian Dog was enshrined. However, in recent years, interest in faith has waned, and before long, it became known as a forgotten shrine and a haunted spot.

Due to years of heavy rain, the stone statue of the Guardian Dog eventually toppled over. It was then that a single child visited the place. Seeing the fallen statue, the child worked desperately with their small body to restore the Guardian Dog statue to its proper position.

──Ten years later. The child grew up and became a student. Because it was a memory from early childhood, they had almost forgotten about the Guardian Dog. One day, on the way home from school, they happened to pass by the shrine and saw a figure. The person had magnificent white dog ears and a tail. The moment he saw the child, he approached as if rejoicing at a reunion and said: "I am the Guardian Dog you saved back then."

And so, the Guardian Dog said he wanted to give a gift... as a way of making you his mate... showing his gratitude.