Kōsuke (Scientist)

In the anime, Kōsuke appears as a bald man behind dark sunglasses, dressed head to toe in a white lab suit. The manga renders him differently, giving him ordinary glasses, a dark cap, and a goatee.

Kōsuke comes across as a meticulous record-keeper, the sort who documents every detail of his team's work and keeps a camera rolling even in the middle of a crisis.

Kōsuke serves on the Scientific Ninja Weapons Team beneath Katasuke, gathering and cataloguing information on their gear, including detailed notes on the Kote and on how Boruto used one during the Chūnin Exams. He quietly tags along when Katasuke follows the party sent to save Naruto from the invading enemies. Once Naruto and Sasuke Uchiha bring Momoshiki down, Kōsuke and Katasuke rush in to finish him off with a device, all while Kōsuke keeps filming Katasuke's supposed heroics. The plan backfires when Momoshiki simply absorbs the fired attacks and recovers his power, and the blast that follows hurls both men away. What became of Kōsuke afterward is never revealed.