Akane and Momo's grandfather and self-proclaimed mad scientist. He's one of the developers of the Manifestation Engine, but now he keeps a research lab in Izu Oshima and focuses on his inventions. He pours most of his money into his research, which is one reason why the Isshiki family is poor. He has stated that whilst he does own various patents, he chooses not to profit from them as atonement for the accident that occured seven years ago. He is the developer of the Vivid System, which allows Akane and the others to fight against the Alone. However, as the result of an explosion that occurred upon completing the experiment, his mind has been transferred to the body of a stuffed otter named Uso-kun (うそくん?), with his human body kept in the fridge for preservation.  (Source: Wikipedia)

Friendship is the key to protecting the world. 
That is everyone's wish. Here in a world where science has solved all questions. 
This story is set in Oshima. The happy, carefree 14 year old Akane Isshiki lived a poor, but well loved life together with her reliable little sister, Momo, who does all the housework, and her grandfather, Kenjirou, a genius inventor who only created useless devices. When the weather is clear, they can see the artificial island, Blue Island, across the sea. In the center of that island rises the revolutionary Manifestation Engine, a discovery that solved the world's energy problems. 
It is a peaceful future, just like everyone dreamed of. One where everyone can smile and be happy... 
But suddenly, the world is visited by danger. An unknown enemy, the Alone, appear, targeting the Manifestation Engine. As none of their weapons worked and they fell into despair, a lone girl takes a stand wearing a red "Palette Suit" which wields a great, hidden power. Before long, allies gather around her to fight. 
And their friendship becomes the only hope for saving the world! 
(Source: Anime News Network)

__Height:__ 178 cm

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**Non anime roles:**
- Shadow Moon - Kamen Rider Black (TV Series), Kamen Rider Black RX (TV Series) and Kamen Rider World (Movie)

Kenjirou Isshiki