Manga by author Wata Rainy

In the town where he spent summers as a child. Yudai, a ronin student, returns to the town where he spent his childhood summers for the first time in a long while, Yudai is upset because a memory that he had kept in the back of his mind has been jolted back to life, a child suddenly appears and tells him something strange...?The summer of the between childhood friends begins here!