Orokamono ga Koi wo Shitara.

Yuusei awakens in a room he doesn't recognize, his head pounding as he pieces together fragments of the previous night. He recalls being dumped by his girlfriend, drinking at a bar, and meeting a handsome, enigmatic man there. The man had asked him a tempting question, and Yuusei agreed, leading to a night they were supposed to forget. They part ways with the understanding that their encounter was a one-time event. However, fate intervenes when they unexpectedly cross paths again in a place neither anticipated.