Nariyuki T. Yamamoto is a miserable, stubborn, strict and overprotective grandfather of the Hamasaki family. He gets angry and irritated at times when Takahashi does things he doesn't want to hear from him. The worst thing his grandson did was the flaming dog turd prank on the front porch.
Trivia:
- He has dementia.
- He never learned how to speak English.
Information:
Likes: Sushi, Ramen, Kimchi
Hates: Takahashi
Comix Minis Appearances:
Season 10
- Bright Night Fright (debut)