I'm a childhood friend who you helped the other day. I have no intention of going back until I repay the favor.

On my first summer break in university, my younger childhood friend suddenly came to visit me at my apartment where I lived alone. "I'm the childhood friend you helped the other day. I have no intention of leaving until I've repaid my debt to you." Amakoi Shiika, my childhood friend one year younger and currently in her third year of high school, is an excellent student and honors pupil. However, since leaving the area after graduating high school, we hadn't seen each other for quite some time. Shiika seems to have come to help me with my solo living situation, but my only concern is—that Shiika is quite clumsy. A story about a clumsy crane who desperately wants to repay a debt of gratitude.