Yosuke and Ruri are in the same team as classmates, but they're always fighting like cats and dogs. One day, everyone ends up working overtime at Ruri's house, but the other classmates go home, leaving them alone. For some reason, the two of them start to be aware of each other, unlike usual. At that moment, a sudden power outage occurs, and the timid Ruri clings to Yosuke. And so, the distance between the two of them gradually closes in the darkness...! The content may vary depending on the distribution method.
