Nezu Dohachiro

Dohachiro Nezu is a science teacher in Namimori Middle School. He believes that tests are the most important thing and always reminds his students that tests will always appear and that they have to be ready for them. He also dislikes students who get low scores, like Tsuna, and hates students who, despite not putting much effort, score high, like Gokudera.

Why He's loathsome:

He is your stereotypical greedy teacher who believes school class tests are important for his students. But he has a short temper who dislikes his students with their low scores.

He threaten Tsuna, Gokudera and Yamamoto to find a time capsule or else he'll expel them for their troubles.

He has zero personality nor character development.

He is a complete moron who thinks the time capsule didnt exist.

The only 3 Redeeming Qualities:

He only appeared in one episode and one chapter.

His voice acting is good

He was thankfully fired when Tsuna and the others found the time capsule that were his 40 year old exams that have low scores, so that Nezu will no longer bother Tsuna and his students ever again for their studies.