Kanji Ike begins his tenure at Tokyo Metropolitan Advanced Nurturing High School in Class D, notorious as a member of the "Three Idiots of D-Class" alongside Ken Sudō and Haruki Yamauchi. Standing at 160 cm with brown hair and eyes, he exudes a perverted streak, frequently attempting to peep on female classmates and openly vocalizing his attraction to girls while resenting attention directed toward attractive males. Academically struggling with an E+ in academic ability and D+ overall, he compensates with sharp communication skills and practical outdoor survival knowledge honed through childhood camping trips—traits pivotal during class trials like the Uninhabited Island Test. Initially, he squanders private points on luxury items and relentlessly pursues Kikyō Kushida, facing consistent rejection. His trajectory shifts as he evolves, confronting flaws like publicly apologizing to Satsuki Shinohara after clashing during a survival test—a moment underscored by their shared history of childhood isolation. He further displays loyalty by challenging Yamauchi to quash rumors targeting Satsuki. By his second year, collaborative survival exams and group expansions catalyze a romantic relationship with Satsuki, tempering his earlier impulsive antics into steadier responsibility. Parallelly, his initially contentious rapport with Airi Sakura softens into mutual academic support, though narrative sources diverge on their closeness, emphasizing his eventual dedication to Satsuki. Kanji repeatedly intervenes in crises, shielding Airi from seniors and engaging in high-stakes class votes, though rash choices intermittently tarnish his standing. Despite expulsion risks and academic hurdles, he persists as a unifying Class D figure, leveraging humor and situational insight to bolster cohesion. His background traces a subpar academic path leading to Class D placement, with a June 16 birthday aligning him with Gemini. His name—etymologically blending "generous cure" with the surname "pond"—remains narratively untouched. Across his arc, Kanji straddles comic relief and incremental maturity, anchoring his role in the cutthroat school through loyalty and adaptability.