Erich von Rerugen

Erich von Rerugen (エーリッヒ・フォン・レルゲン, Ērihhi fon Rerugen) is one of the secondary characters of Isekai Quartet. He is a teacher and makes certain to keep the students in line. Particularly Tanya.

Appearance
Erich has blue hair, glasses, and the usual green uniform as seen with other troops, if not higher class showing his position.

Personality
He has a rather subservient personality and usually humiliated and the butt of the jokes, making him rather meek. Still, he attempts his best to teach his new students, and is wary of the 'little girls' like Beatrice, Megumin, and others due to knowing Tanya as a 'evil girl'. Still, he tries his best and is kind enough to even help Aqua, Kazuma, and the other troops to get out of detention.

Powers & Abilities
He lacks any form of actual abilities, but is a very smart man. Being a high ranking officer back in his world and did much paperwork. He has also gained new powers to help him when dealing with the more powerful students.

Commanding Persuasion: While the full power has yet to be seen, Erich can 'persuade' others to do other things. A type of way to make certain other students don't make trouble.

Tanya
Like back home, he fears her and is wary of Tanya. Making certain she doesn't cause trouble and hoping nothing bad happens with her around. Still, he holds some respect to her and wishes she'll be kind to her classmates. Sadly like in his world, Tanya misinterprets his own meanings and is unaware she considers him a friend.

Emilia
He considers Emilia an absolute angel, and is glad to have finally met a normal girl for once. Helping her with the students that went into detention.

Vanir
It's uncertain what their relationship is, but likely Vanir didn't like the positive emotions he gave off when meeting Emilia.

Trivia
. Like in his home series, he and Tanya misinterpret the others words.