Kazuya Nakamine is a physics teacher at Katagiri High. A former student of that very school, he now works beside old classmates turned colleagues, carrying the same easygoing, joking manner that defined him back in his own student days.
Nakamine has medium-length green hair set above green eyes, and he wears glasses.
Though the source says little about him directly, Nakamine comes across as lighthearted, brushing off tension and treating most things as a joke.

Naruto vs Luffy with the twist nobody asked for: Luffy tickled Hinata on date night, and she kind of liked it. We break down the whole fight and commit to a winner....

There are no women on Namek. That isn't an oversight, it's the biology. Why we handed Piccolo the one thing his own species rules out, and why it had to be trap soul....
Nakamine teaches physics at Katagiri, the very school he once attended. He shares that history with Shin Yasuda, a fellow alumnus and now colleague who does not actually remember him; their dynamic mirrors their school years, with Yasuda mildly exasperated and Nakamine laughing everything off.
He has also stayed close with Masumune Sasaki since high school. The two live near each other, and Nakamine thinks nothing of borrowing games from him.
Physics teacher Kazuya Nakamine is voiced by Kazuyuki Okitsu in Japanese and by Mark Quach in the English dub.
Kazuya Nakamine teaches physics at Katagiri Senior High School.
Yes. Kazuya Nakamine is a former student of Katagiri High who now works there as a teacher alongside old classmates turned colleagues.
Kazuya Nakamine and Shin Yasuda are fellow Katagiri High alumni now working together as colleagues, though Yasuda does not actually remember him, leaving Yasuda mildly exasperated and Nakamine laughing it off.
Kazuya Nakamine has medium length green hair set above green eyes, and he wears glasses.
Looking for more on Kazuya Nakamine? The Horimiya Wiki on Fandom has a dedicated page with community notes.
View on FandomThis content is original writing by Daddy Jim Headquarters based on the Horimiya anime series, manga, and official materials. Horimiya was created by HERO and Daisuke Hagiwara, published by Square Enix, and animated by CloverWorks. All rights to Horimiya and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
Rights holders
All rights belong to their respective owners.
Character and scene imagery on this site is original artwork by Daddy Jim Headquarters, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:
Official resources:
Daddy Jim Headquarters maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.