Armin Arlert is Eren's best friend. He is physically weak, but emotionally strong. Even though he lacks in actual combat skills, Armin is a genius in theoretical courses and can make plans even under extreme pressure. Even so, Armin keeps on thinking that he is weak. He himself does not notice the things he does for Eren and Mikasa and believes himself to be completely incompetent and hates himself for having to rely on Eren and Mikasa. (Source: Wikipedia, edited)

The main protagonist of KonoSuba. A sixteen-year-old Japanese teenager who became a game-obsessed shut-in after having his heart broken over his childhood friend during middle school. He is sent to the parallel reality after dying from acute stress reaction, forcing Aqua to come with him after she irritates him with her attitude. Kazuma is classed as an Adventurer which, despite being the lowest ranked class, allows him to learn various skills from other classes, albeit at an increased cost. With his ability, Kazuma learns basic skills such as stealing, archery, monster detection, and basic magic. (Source: Wikipedia)