Iwata

The muscular classmate of Hayato Hayakawa. A surprisingly muscular elementary school student. Although there are few appearances in the manga, the character appears regularly in the anime. Iwata is a well-behaved student but is always eager to accept a challenge to a fight or other physical contest.

A strong student who appeared in the first episode to hit Pascal-sensei. But after that!?

Almost regular. Does it mean that the anime production team has found a talented person? Like Hikaru Tachibana, it's natural for him to appear in stories that don't appear in the original work, and there are even original stories where Iwata is the main character. There are almost no episodes in which he doesn't appear, and the running gag of him leaving behind a single word after being blown away every time is well-established, and I can only assume that the anime side liked him. He prides himself on being strong, and when someone or something that looks strong comes up, he's the first to confront them (although he loses 90% of the time). He also showed off his cute maid outfit. The reason why he appeared in the original work is probably because he played an active role in the anime. I look forward to seeing his continued success.

In the first episode, he punched Pascal-sensei once, and after that he didn't appear at all. Everyone probably thought he was a one-time appearance. But one day, it appeared again, albeit for just a few frames. After a while, he started appearing in the story little by little, and his character is starting to become established.

[https://pascalsensei.fandom.com/wiki/Iwata]