Naofumi Iwatani

Naofumi has short black hair that spikes in all directions and sharp green eyes. He often wears a scowl on his face because of his cynical outlook towards the world, but he does express gratitude from time to time.

The armor he primarily wears is Barbarian Armor +3, which has gone through numerous upgrades and transformations. Depending on the situation, he may switch to different sets of armor or clothing.

The weapon in his possession is the Legendary Shield, which was granted to him when he was summoned to another world.

Naofumi was initially an exceedingly trusting and positive person - excited about being summoned as a hero. However, his mentality abruptly changed after Malty S Melromarc, the princess of Melromarc, betrayed and framed him.

Being left near-penniless, falsely accused as a criminal, and hated by nearly everyone, Naofumi became extremely distrustful towards everyone and cynical about life. He could not trust anyone and started to assume that others were trying to get something from him. The result of the Princess's betrayal has left him in an almost permanent state of anger and hostility, which he masks behind a calm and level-headed personality. This mentality bites him back as he unknowingly pushes away genuine supporters of the Shield Hero and Siltvelt envoys.

Unfortunately, being a Shield Hero meant that Naofumi was essentially useless by himself, which forced him to eventually seek help. He was convinced to get a slave - someone who could not betray him - so he eventually finds Raphtalia. Naofumi treats her deadly illness and teaches her to fight. After spending time with Raphtalia, and eventually Filo, Naofumi starts to heal mentally and trust his close companions. However, this is a long process and Naofumi is still unable to fully trust or be intimate with others. Unlocking the curse series weapon Shield of Wrath also placed a block on his psyche which prevented him from empathizing with others.

After losing nearly everything, Naofumi deeply values what he has built up since being summoned, especially his relationships. Therefore, he is protective of people like Raphtalia. It is also shown several times that Naofumi is at his most vulnerable when he loses someone close to him. This can be seen when Naofumi thought he had lost Raphtalia after losing the Duel with Motoyasu, and when he was separated from Raphtalia and the rest of his party he traveled to Glass' World. He was even willing to sacrifice his life to save his friends such as when they were battling against the Phoenix or Takt.