Yoshiki and Hikaru, boys living in a certain village.
The two people of the same age grew up together.
Then one day, Yoshiki becomes convinced that Hikaru has changed into something else.
Even so, I want to be with you.
The days begin as usual, spent with someone who appears to be a friend.
At the same time, strange events occur in the village.
The book also includes a special short story depicting two people from the past.