Grandpa Danger (絶体絶命でんぢゃらすじーさん, Zettai Zetsumei: Denjarasu Jii-san, lit. "Absolute Death: Dangerous Grandpa") is an adventure manga by Kazutoshi Soyama first published by Shogakukan in CoroCoro Comic in October 2001. The series was adapted as a 51-episode anime broadcast on TV Tokyo from April 2004 to March 2005, which is licensed by Viz Media in North America as Grandpa Danger,[1] and a series of video games.[2] A second anime television series premiered on October 20, 2012.[3]
Grandpa(じーさん, Jhi-san)
Yosuke(ようすけ)
Principal(校長, Ko-cho-)
Gebe(ゲベ)
Koutei(コウテイ, 校庭)
Mr.Strongest(最強さん, Saikyo-san)