Tamao Kameyama, nicknamed "Kame," ranks among Kenta Ikegami's closest friends and classmates at Arama Middle School. He anchors a core trio with Kenta and Kinzo, routinely engaging in their mischievous endeavors—particularly pranks against science teacher Machiko Mai. Despite his regular participation, Kameyama maintains an inherently timid and calm demeanor, starkly opposing Kenta’s aggressively chaotic streak. This reserved nature often makes him hesitate or balk during the group’s riskier plots. Yet Kenta’s influence can unexpectedly sweep him into reckless abandon during pranks, causing momentary loss of control. Visually, Kameyama is frequently distinguished by his eyeglasses, whose lenses bear a signature swirling-pattern effect. Though typically following Kenta’s lead, he consistently displays loyalty within the trio’s dynamic.