I'm Minoru Hisado, a dull office worker. My sales performance is at the bottom, and I'm always getting scolded by my strict boss, Mito-san. It was hard to be scolded every day, but my other boss, Komatsu-san, who is kind, always supported me and helped me out. One day, while I was working overtime, the two of them invited me out for drinks. After forcing me out, they asked me to let them stay over because they'd missed the last train. With a faint hope, I let them stay over, but that day marked the beginning of the longest night of my life so far...