Operating a laboratory in the United States, Professor Shinobino works as a scientist with advanced technological inventions. His creations include Togeijirou, a sentient cactus that interfaces with electronic systems to track individuals globally. During events in the film *Ninja Hattori-kun + Perman: Chō-Nōryoku Wars*, he aids protagonists after abductions transport children like Shinzo and Shishimaru to New York. Leveraging Togeijirou, he pinpoints their location on a Japan Airlines flight to enable rescue.

He analytically investigates antagonist Psychoman’s motives, applying scientific expertise to comprehend and counter the threat. Demonstrating leadership, he coordinates the heroes’ crisis response and facilitates their travel to the United States, navigating obstacles like airport security restrictions on ninja weaponry. Personality assessments align him with INTJ and Enneagram Type 5w4 classifications, reflecting a reserved, intellectually driven nature focused on knowledge gathering and strategic problem-solving. These traits manifest through methodical experimentation and occasional difficulty explaining complex concepts.

The *Ninja Hattori-kun* television series episode "Hattori's New Friend" references him dispatching Togeijirou to Japan initially. His background establishes ties to the Iga ninja tradition.