Eizo is an older man with short, dark hair and is starting to get bald because he has a receding hairline. He also has a thin beard.
He wears a dark-colored suit, a black waistcoat and a plain tie.
In contrast to his partner Naomasa Tsukauchi, Eizo has a more affable, calm and relaxed behavior. However, this does not mean that he does not take his job as a detective seriously or that his deductive abilities are depleted, as his conjectures are usually quite accurate. He is also someone who knows more than he pretends, being one of the few people who knows Knuckleduster's past as the hero O'Clock.
Keen Intellect: As a detective, Eizo has fairly developed deductive skills, being able to conjecture and speculate quite rightly about the plans, motives and intentions of a villain or a criminal organization with the information available to him at the time.
- Eizo's surname contains the kanji for "rice paddy" (田 ta?) and "marsh, swamp" (沼 numa?), and his first name contains "honor" (栄 ei?) and "three" (三 zō?).
- Eizo likes cigarettes and alcohol.
|Detectives||Naomasa Tsukauchi • Eizo Tanuma|
|Officers||Sansa Tamakawa • Monika Kaniyashiki|
|My Hero Academia: Vigilantes|
|Vigilantes||Naruhata Vigilantes (The Crawler • Pop☆Step • Knuckleduster) • Stendhal|
|Allies||Ichimoku Samazu • Jube Namimaru • Makoto Tsukauchi • Moyuru Tochi • Rapt Tokage • Soga Kugizaki|
|Heroes||Air Jet • All Might • Best Jeanist • Bigshot • Burnin • Captain Celebrity • Compass Kid • Death Arms • Edgeshot • Endeavor • Enigma • Eraser Head • Fat Gum • His Purple Highness • Ingenium • Kido • Loud Cloud • Midnight • Mirko • Mister Blaster • O'Clock II • Onemu Shinya • Onima • Present Mic • Ryukyu • Snipe • Thirteen|
|Organizations||Buster Union • Endeavor Agency (Flaming Sidekickers) • Police Force (Monika • Naomasa • Eizo) • Midnight Boys • Purple Revolution Agency • Team Idaten|
|Villain Factory||Queen Bee (Kuin Hachisuka & Bee☆Pop) • Mario Kugutsu • Hina • Number 6 • Instant Villains (Akira Iwako • Junkie Villain • Monster Cat) • Next-Level Villains (Teruo Unagisawa • Kirihito Kamachi • Bat Villain • Octoid • Bombers)|
|Other Villains||Three Sturm und Drang Brothers • Stendhal • Emperor Yotsuura • Ichiro Hotta • Jiro Hotta • Mazinger Brothers • Suicide Bomber • Abegawa Tenchu Kai (Rojiya Yonenaga • Tetsu • Haruhisa • Soji) • Robber Villain • Drunk Lee • Master Beast • The Rapper|
|Others||East Naruhata High Dance Squad • Feathers (Miu • Yu) • Mad Hatters • Pamela • Sisters of Saint Lila's Academy • Shoko Haimawari|