Yuunosuke Tenjou (天上 祐之助)
Yuunosuke Tenjou is the late grandfather of the Tenjou siblings.
Isekai de Cheat Skill wo Te ni Shita Ore wa, Genjitsu Sekai wo mo Musou Suru: Level Up wa Jinsei wo Kaeta
Supporting
Nishimura, Tomomichi
Corbetta, Oliviero
de Syllos, Gilberto
Bodson, Pierre
Williams, Kent
Hernández, Mario
