Summary: \"Until my brother returns the 500 yen, I will gladly become senpai\'s property as collateral!\" One summer day, Akari Miyamae, his friend\'s younger sister, came to the apartment of Motomu Shiragi, a university student. What is the secret behind this debt, and what is Akari\'s purpose...? An overly-sweet cohabitation comedy that starts with one coin! Notice: This shall be continued by Animated Glitched Scans