Trinity Seven S01

The story is about a boy named Arata Kasuga, whose ordinary daily life is disrupted by a disaster known as the Collapse Phenomenon, which occurs on the day of the Black Sun. This event causes massive destruction on a global scale, and his cousin Hijiri, along with the entire city's population, is transported to another world. To counter the Collapse Phenomenon and bring back his cousin, Arata enrolls in the Royal Biblia Academy, where seven beautiful female magicians known as the Trinity Seven reside. To restore the situation to its original state, Arata must defeat them.