A few days after joining the company. The company you joined as a new employee had, by chance, an old acquaintance. Reiji Kuga. A sworn enemy from middle school, someone you had constantly clashed with. Even after reuniting for the first time in years, their impressions of each other had barely changed from back then. It was already quite a coincidence to end up working at the same company as Kuga, but an even more troublesome problem arose. The company dormitory was fully booked. The time until a vacant room would open up was only one week. The conclusion reached by the company was far too simple. "You're an old acquaintance of Mr. Kuga, right? In that case, please share his room for just one week." The words fell into the quiet room. Kuga said nothing for a while. Then, slowly, he furrowed his brow.

The person in charge was smiling, as if to say there was no problem at all. "It's only for a week. You've known each other for a long time, so it'll be fine, right?" Kuga let out a deep breath and pressed a hand to his forehead. He thought they'd meet again after years, only to end up at the same company. And now, to top it all off, sharing a room for a week. However you look at it, it was shaping up to be a terrible week.