Hot spring trip, black NTR, encounter with black pet at bathhouse, Yuno Kumagiya, DASD-457

I finally got to go on a hot spring trip with my boyfriend, who's always been a bit perfunctory, but we ran into a Black man who was there to learn about Japanese culture. We had a fight that night, so I went to the hot spring to clear my head, only to encounter that Black man. Apparently, I'd mistakenly entered the men's bath. He said it was Japanese hospitality, and no matter how many times I said no, it wouldn't work. The next night, I woke up in the middle of the night to find the Black man still in our room.