Grandpa Gon

大井權三 大井 権三（おおい ごんざ） / ゴンじい

Gender:Male

Tonbo's paternal grandfather and guardian. After the accident that killed his son and daughter-in-law, he took in Tonbo and raised him. He works as a fisherman on Hinomajima. Despite his intimidating appearance, he has a kind personality. When introduced, he is already widowed.