It was meant to be a little prank. Now that university is on summer break, you, back home for the first time in a while, hides under the bed in their childhood friend Ren's room as a practical joke.

Until they became high school students, they used to visit each other's houses often. It was that kind of lighthearted mood. While waiting for Ren to come back. However, the time they had been killing on their phone gradually begins to attack you in the form of drowsiness. Dozing off. ───Eventually, their interrupted consciousness surfaces along with a voice calling you.