Caligula (2018)
Mobius is a perfect digital world for the imagined benefit of humanity by μ, a virtual idol program that attained sentience and self-awareness. Only humans who are suffering in the real world and strongly relate to μ's songs are lured into Mobius. Once they enter, people often forget that the real world exists. Regardless of age or gender, they are turned into students and forced to experience school life over and over, which μ considers "the most radiant time in a person's life."
In the United States, Caligula is not on a streaming service right now, but it can be rented or bought on Apple TV Store. It is available in 92 countries, for example on Crunchyroll, Prime Video and MovistarTV. Starring Rie Takahashi, Yoshimasa Hosoya, Minami Tanaka and Ari Ozawa. Rated 5.7 on IMDb from 104 votes.
