TV-Series
Description
Hakase, known as Professor, is an elderly scientist with a grayish-white mustache, fair skin, and a distinctive balloon-shaped nose. He typically wears an open lab coat over a yellowish shirt with a red tie, though he sometimes changes attire, like wearing a tropical shirt on vacation. As Natalie's grandfather, he lives with her and runs a laboratory where he invents numerous devices, including the Time Station, Peak Point Helmet, and the virtual AI assistant Charu (Casi), capable of manifesting physically.

His personality blends genuine concern for others' safety with notable absent-mindedness and occasional clumsiness. He envisions a peaceful world and supports protagonists by providing gadgets, training facilities, and messages. However, his forgetfulness leads to critical errors, such as accidentally leaving the Pipo Helmet unsecured, allowing the villain Specter to access it. In animated adaptations, his emotional expressions are often exaggerated, though he demonstrates intelligence during problem-solving.

Across various incidents, his scientific expertise makes him a frequent target for kidnapping. Specter once abducted him, confining him in Specter Land's circus area under guard by a hostile clown. During another incident, he was captured alongside others and shrunk within his own laboratory. While on vacation, he urgently returned after learning of a security breach in his lab caused by distributed Monkey Pants and Pipo Helmets. He later joined "Team Spike," piloting a mech to combat chaotic monkey outbreaks.

In the anime "Saru Get You ~On Air~" and its second season, he collaborated with Kakeru, Hiroki, and Natalie to counter Specter's global disruptions using teleporters and specialized gadgets. The narrative reveals Specter originated as Natsumi's pet monkey, Kuuta, transformed by a Pipo Helmet. Antagonists called Neo Pipotrons exploited Kuuta to harvest Specter's DNA, creating mutant forces for world domination. Hakase contributed to thwarting their plans, confronting the Neo Pipotrons and aiding in Specter's eventual reversion to Kuuta after exposure to human kindness.