Dorm Biohazard: The Mold-Cultivating Roommate — Episode 4

Elena Whitmore, a student with severe asthma, suffocated to death from an asthma attack in her mold-ridden dorm in her past life. Her roommate Vivian, who claimed to be a "nature devotee," refused to shower or open windows to "protect the microbiome," yet framed Elena as a bully discriminating against small-town girls after her death. Reborn on the first day of college, Elena pretends to comply while secretly gathering solid evidence.