Schwarzenegger Taro, alias Shuwarutsu Negataro, holds dual roles as gym teacher at the Spartan Institute of Higher Learning and newly appointed punishment counselor under Principal Toenail of Satan. He possesses an exceptionally muscular, notably buff physique and blonde hair. His primary narrative function involves targeting students for punishment, specifically Mayumi Takahashi. In one instance, he activates a handheld device causing uncontrollable tickling, resulting in her nudity. This facilitates Toenail of Satan's subsequent humiliation of Mayumi via a public broadcast showing her chained and exercising nude.

A defining supernatural trait is his extreme physical attractiveness, functioning as a power that overwhelms opponents. Kekko Kamen retreats upon exposure to his appearance. Even characters typically disinterested in men, like Mayumi and Toenail of Satan, react to his allure. Beyond this, he exhibits formidable combat capabilities: exceptional strength, high endurance, and tactical intelligence. One feat includes tackling a brick wall and reducing it to dust without injury.

His role culminates in a confrontation where a blindfolded Kekko Kamen negates his attractiveness advantage. She defeats him by anticipating his movements through auditory cues from his muscular actions during combat. The character serves as a parody of Arnold Schwarzenegger, referencing his action film roles, reinforced through narrative and stylistic choices in his scenes.