Kataoka Tesshin, Diamond no Ace Wiki

Kataoka Tesshin is the coach of the Seidou High School Baseball Team. He is an alumnus of the school and has played as a pitcher in the past. He is also a Modern Japanese teacher. Kataoka is known as a strict coach, but he also praises his players and says reassuring things to them from time to time. Every thing he does is for the benefit of the team. He spares no effort. If he wants his players to make a significant step forward, he himself takes part in training. Kataoka was a rowdy unmanageab

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Yūki Masashi, Diamond no Ace Wiki

miyuki kazuya, sawamura eijun, furuya satoru, kominato haruichi, kominato ryousuke, and 7 more (ace of diamond) drawn by yuminari

The moment Coach Kataoka saw a fraction of himself in our boi, AceJun : r/AceOfTheDiamond

Kataoka Tesshin, Diamond no Ace Wiki

Miyuki Kazuya, Diamond no Ace Wiki

Anime, Diamond no Ace Wiki

Ace Of The Diamond Seidou High School / Characters - TV Tropes