Yui, a female employee, came back from her honeymoon. Abe, the director, will help Yui who works overtime to clean up her accumulated work. Then, in the middle of the night, when they were carrying the cleared documents to the library, a power outage suddenly occurred, and the electronic lock of the library was locked, and the two were trapped. Yui gradually gets sleepy after a long time. Abe, who saw her appearance, lost her reason and pushed her Yui down. After that, the two of them were locked in a closed room for some reason.
