When I was in college, I lived with my classmates in a rented house, a private house with a bathroom on the first floor. The opposite door is a small couple. The background is over. It's hot in summer, and everyone likes to sleep naked at night, and one night in the middle of the night, that buddy knocked on our door, and her daughter-in-law has returned to her hometown these days and is not there. I thought to myself, my eldest brother usually looks quite normal, and