Men and Women Change Bedrooms, and the School Beauty in Red Stands at the Bedside at the Beginning

When Xu Hai woke up, he found that he had traveled to a parallel world that was slightly different from his original world. Just when he didn't know the meaning of this parallel world, the summer vacation ended and the university started. After the semester started, Xu Hai received a notice that men and women would change dormitories as soon as he returned to school. Just when Xu Hai thought it was just an ordinary change of sleep, he discovered that things were not that simple. The red liquid dripping from the bedside, the crying in the middle of the night, the roommate who disappeared mysteriously, the red embroidered shoes that appeared out of thin air... After two near misses, Xu Hai finally said those oracular words to his shivering roommate. "Don't be afraid, adopted sons, I discovered the pattern of senior sister's actions!"