A university student summoned to another world as the Spear Hero. He is an easy-going and handsome womanizer.

Spoiler

After being abandoned by Malty, He has developed an obsession for Filolials. After Fio tried to cheer him up, he can now only see women as pigs in the literal sense. He raised three Filolials, called Kuu, Marin and Midori because he couldn't get Fios attention. He also unlocks the curse series. His sins are Lust (for Fio) and Envy (for Naofumis position of being loved by Fio).