The Strongest Assassin Gets Transferred to Another World with His Whole Class

Story:

During the day, he is a typical high school student; at night, he is an assassin who lives in the underworld. Aragi Kai, a boy with two faces. Because of his odd demeanor and antisocial personality, his peers despise him. Aragi and his students were abruptly transported to a another universe one day. It is a realm of magic and swords. In front of the perplexed kids, a woman by the name of Leonora announces… "The Demon King has called you as 'Hero Candidates' to this location. Please assist us. Each pupil receives the special ability "Divine Protection" from Leonora. While some powerful ‘Divine Protections’ are given like telekinesis and destructive blast, Aragi’s ‘Divine Protection’ is judgment. It is a skill that allows one to see the details of the target, but since he was always a loner in class, he gets mocked by them for having a skill that is useless in battle. However, he operates behind the scenes in the parallel world with his abilities as an assassin and his calm situational assessments…