Secret, free, peaceful, and then...

After the death of his grandparents, middle school teacher Yukino got rid of all the things in his room.
However, one by one, new items begin to appear in the empty room without him realizing it.
Who is there and for what purpose? When Yukino, who is suspicious, appears before him...?

"Would you let me stay here?"
After meeting this mysterious woman, Yukino realizes something he had forgotten...

A delicate and gentle summer human drama that vividly depicts the human heart begins!!