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Naofumi Iwatani, often referred to as the Shield Hero is the titular main protagonist of the light novel, manga and anime series The Rising of the Shield Hero. He also appears as a significant supporting character in the second season of Isekai Quartet, a crossover anime featuring characters from the "Isekai" genre of anime.

Initially a layabout from Japan, Naofumi was transported to another world by the Church of the Three Heroes alongside three other Japanese men. These four Japanese men became the four legendary Cardinal Heroes, each wielding a legendary weapon.

Naofumi was given the Legendary Shield, becoming the latest Shield Hero. Unfortunately, the possession of the Shield gave Naofumi a natural disadvantage, as he didn't have any means of offense. To make matters worse, the Church and part of the monarchy held a prejudice against the Shield Hero and defamed him as a pariah to the kingdom. He left the Hero Party after he was been betrayed and framed by Malty.

He is voiced by Kaito Ishikawa in the Japanese version of the anime, and by Billy Kametz in the English version of the anime.


At first, Naofumi was a kind and trusting man. However, after being framed and hated by the country, he grew bitter and resentful. He hates Malty and her father for their cruelty, and the other heroes for their incompetence.

After Raphtalia became his slave and joined his party, he began to go back to his kinder nature, albeit still somewhat bitter.

Powers & Abilities

Legendary Shield: As the Shield Hero, He wields the Legendary Shield, which can absorb materials, store items, and gives him great defensive power.

  • Air Strike Shield: Creates a Shield-shaped barrier. It can be thrown at opponents or be used as a platform. Can create two.
  • Shield Prison: Used to trap opponents.

Merchant Skills: Due to the country hating him, he had to make money on his own. He became a merchant to do so, allowing him to learn many skills from haggling to negotiating.

Crafting: After becoming a merchant, he learned how to craft things, from Potions to Accessories.

Healing and Support Magic: As the Shield Hero, he has a natural talent for healing and support magic.

  • First Heal: A basic healing spell.
  • First Guard: A basic defense boost spell.
  • Hate Reaction: Causes select monster(s) to chase and attack him.

Shield of Wrath: A shield created from Naofumi's anger. When he uses this shield, he can counter enemy attacks with an evil flame that creates burns that put enemies in a weakened state. However, it corrupts Naofumi's mind when he uses it. 




  • Naofumi's English voice actor, Billy Kametz, also voiced Josuke Higashikata in JoJo's Bizarre Adventure, Metal Lee in Boruto: Naruto Next Generations, and Kyouya Mitsurugi in KonoSuba: God's Blessing on this Wonderful World!.


                    Isekai Quartet logo.png Heroes
Cautious Hero: The Hero Is Overpowered but Overly Cautious
Ristarte · Seiya Ryuuguuin
KonoSuba: God's Blessing on this Wonderful World!
Aqua · Arue · Chris · Darkness · Eris · Megumin · Kazuma Satou · Wiz
Ainz Ooal Gown · Albedo · Cocytus · Narberal Gamma
Re:Zero − Starting Life in Another World
Beatrice · Emilia · Felt · Julius Juukulius · Puck · Ram · Reinhard van Astrea · Rem · Subaru Natsuki · Wilhelm van Astrea
The Rising of the Shield Hero
Filo · Naofumi Iwatani · Raphtalia
The Saga of Tanya the Evil
Tanya von Degurechaff · Viktoriya Ivanovna Serebryakov
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