Naofumi Iwatani

Naofumi Iwatani (岩谷尚文, Iwatani Naofumi) is a side character in Isekai Quartet who is introduced in the second season.

He is the main protagonist in The Rising of the Shield Hero series. After being transported in Isekai Quartet, he's now a student of Class 1.

Appearance
He has short black hair that spikes in all directions. His eyes are green and he often wears a scowl on his face because of how he was mistreated when he was first summoned to another world.

In the Isekai Quartet world, he wears armor, a cape, leather gloves, leather boots and a shield that is irremovable.

Personality
He has a cold and rough personality. Due to his betrayal upon summoning in his world, he doesn't trust others easily and doesn't speak much. Though according to Raphtalia deep down he's a good person. One simply needs to be close to see it.

He also has some bias on those who talk about Gods, though justified considering the Church of Three Heroes incident.

Plot
While fighting a monster his shield is replaced by the Mysterious button and the monster pressed the button, transporting him to the world of Isekai Quartet.

After being seperated, he searched the school for Raphtalia and Filo, (at one point, he missed Raphtalita when she was talking to Ainz and Kazuma as a tree is in the way).

He manages to find Filo and Raphtalita and save them from a baseball hit by Aura.

Powers & Abilities
As a Hero he has great power, though not on attacks but on protecting and shielding. He has mastered his power,and is perfect with teamwork with Filo and Raphtalia. He has great defense.

Air Strike Shield: Creates a strong semi-transparent green shield in mid-air.
 * Second Shield: Creates an additional Air Strike Shield.

Shield Prison: Creates a cage of shields that can surround him or others.

Raphtalia and Filo
Two of the only people he trusts and cares for, giving a rare smile to them. More than willing to defend them as the two also show happiness towards him. Raphtalia does state though he's a bit difficult to talk to.

William
He is grateful for William explaining his situation to him. William also feeling similar to Naofumi as he too recalled having the same 'eyes' like him before. Possibly hoping Naofumi can to move on like he did.

Aqua
He doesn't find her trustworthy because she speaks of Gods, this doesn't help her much to Raphtalia's confusion.

Trivia

 * He is considered to be a side-character unlike the other four, Kazuma, Subaru, Tanya, and Ainz.