The third son in the Hildesheimer barony. Skillfully uses ancient magical techniques that were considered lost. Known as Gaius in his previous life, he was reincarnation to receive the type four emblem, which he believed was the strongest. Despite his advanced age, because of his anti-social lifestyle in his previous life Mathias still acts surprised or embarrassed sometimes. While not entirely emotionless Mathias did claim he only helps out the kingdom because he needs it to grow stronger.

(Source: Shikkaku Mon no Saikyou Kenja Wiki, edited)