Main characters ; : : The main protagonist. Self-isolated in his class, he manages to thrive as a "loner" in his new world using the skills thrust upon him. After being transported to the other world, he refers to his former classmates via the cliques they had formed in their original world, e.g. "Mean Girls", "Nerds", "Delinquents", etc., being either ignorant or uncaring of their actual names (which tends to constantly exasperate the girls, especially the Class Rep). One of his Skills is "Master of None", which means although he can pick up other Skills with almost incredible ease, he levels up very slowly compared to the other students; however, despite the apparent uselessness of his acquired Skills, he is able to use and combine them in such a way as to overcome almost any situation. Because of his low levels and preferring his "Loner" status, he refuses to join any of the student parties. ; : : The class representative, she is responsible and reliable, always trying to keep the other students together and in line, and is constantly worried about Haruka, who is her childhood friend and for whom she has feelings for despite his "antics". Even though she (and all of the other girls) are exasperated by Haruka's poor communication skills and his constantly getting into dangerous situations, she and the other class members come to rely on and trust him for his strength and resourcefulness (plus the fact that he is far safer to be around than the Delinquents who had tried to dominate them). She also has the Skill "Hijack" (which can only be used by killing another Skill-owner), but will never use it; only Haruka and the Nerds know about her possessing this Skill. Another possible source of exasperation and frustration for her is that although she and the other girls (because of their higher/stronger Levels) assert that it's their duty to protect Haruka because of his low Level, he ends up protecting them instead. ; Angelica : : A female knight who was afflicted with a curse, turning her into a skeleton and becoming the final boss of the dungeon, the Dungeon Emperor, where she remained for possibly centuries, alone and effectively immortal. After Haruka breaks the curse and frees her by using his Subjugate Skill, he also manages to restore her humanity and she becomes one of his closest friends and companions. She also has feelings for Haruka.
Students ; Shield Girl : ; Library Commission : ;Handicraft Girl : ; Cooking Girl : ; : : Referred to by Haruka as "Nudist Girl" because of her tendency to want to strip down at very inappropriate times. ; : : Referred to by Haruka as "Fish Girl" after she appears in his tent one morning telling him that there will be grilled fish for breakfast. ; Vice Chairwomen : : Class Rep's closest friends who help her keep the rest of the class in check. ; : : The leader of the Gals (Haruka keeps referring to them as "the mean girls"). In the light novels, Haruka keeps calling her "Queen Bee". She was foremost in driving the Nerds away, but now (along with her subordinates) wants to find them and sincerely apologize. In Volume One of the light novels, it is revealed that she had been a magazine model. ; Gals : : Gal Leader Shimazaki's subordinates. ; Volleyball Club Girls : : Members of the Volleyball Club ; : : Avid fans of anime and games, they are amongst the strongest students due to their knowledge of
isekai, which allowed them to choose magic skills. While they were originally helping the rest of the class, a series of mistaken events causes their classmates to drive them away. While the Nerds seem to be the group Haruka is closest to, he declines to join them, thinking that his low Level status will hold them back. ; : : Sports enthusiasts who are the physically strongest amongst the students. While Haruka refers to them as "meatheads", they are basically decent and honorable. ; : : Troublemaking students who intend to use their powers against their classmates in order to rule over them (especially to create a harem out of their female classmates). However, their arrogance proves to be their fatal undoing. ; Tanaka : : A mathematical genius, but another loner like Haruka; he attaches himself to the Delinquents and teaches them how to use their powers while secretly having an agenda of his own.
Residents of Omui ; Merielle : : The daughter of the local Duke. Haruka rescues her from bandits, but (true to form and much to her annoyance) keeps forgetting her name. ; Gatek : : An Adventurer. ; Ofter : : An Adventurer. ; Guild Boss : : The head of the town of Omui's Adventurers' Guild. ==Media==