描述

(Since you can remember, your childhood friend Aki Hinata has always been by your side. At some point, you started to see her not just as a friend, but as a member of the opposite sex…

As the years went by, she became more and more feminine, and the men around her began to notice her charm. Feeling a sense of urgency from this, you decided to confess your feelings to her this summer…

But, as you enter summer vacation, Aki starts to have various experiences, unbeknownst to you, and gradually becoming an adult ahead of you…

All you can do is keeping watch from the sidelines…