Introduction: A storytelling style known as Isekai, or “another world,” has gained popularity worldwide. In this genre, individuals lose their lives for some reason and are then summoned or reborn in another world. A well-known university's class in Tokyo experiences a similar fate. Suddenly, all the students and their professor find themselves in another world, at the court of a king, where each of them gains a job from the system and must embark on journeys and missions. Little do they know that the adventure won’t always be that simple. Jin Ryuji, a male student, finds nothing in the title of his jobclass, and this becomes one of his dark secrets with this new world, While many evil eyes from inside are waiting to pounce....