Tenkousaki no Seiso Karen na Bishoujo ga, Mukashi Danshi to Omotte Issho ni Asonda Osananajimi datta Ken

I met my childhood friend again, and she had become a beautiful and innocent-looking girl.

"It's been a while, Hayato."
"Haruki, is it?"

In the past, I used to play in the mud with my childhood friend in the countryside. When I saw her again, there was no trace of the bratty boy I thought she was back then. But only ...