Itsuhito Sakaki, a 21-year-old Gemini born June 3, navigates life as a third-year university student from a privileged background, his understated elegance reflecting family wealth without overt displays. Preferring solitude over luxury, he escapes to camping trips or solo travels rather than social events, though his family’s vacation home stands as a quiet testament to their affluence. Athleticism comes naturally—his physique honed through sports he masters yet never pursues formally, channeling agility into personal adventures instead. Despite drawing admiration from female peers for his charm and athletic prowess, Sakaki remains detached from romance, opting to dissect social dynamics with a mix of polite humility and disarming bluntness. His unpredictability surfaces in calculated maneuvers, subtly steering interactions for amusement or unseen goals. A steadfast friendship with Shinichi Sakurai anchors him; their bond, forged in university, fuels Sakaki’s irritation at Shinichi’s resistance to social engagement, dubbing him “Saku” while lamenting his wasted youth. Determined to spark progress in Shinichi’s stagnant relationship with Hana Uzaki, Sakaki partners with Ami Asai to engineer scenarios that thrust the pair closer, his motives veiled but hinted to extend beyond mere mischief. A memorable group date backfires when his presence unwittingly entices every female attendee to trail him home, provoking a rivalry settled by a soccer match where Sakaki’s effortless dominance humiliates three challengers. Academically, he skirts the edge of failure, prioritizing leisure over lectures. Crafted narratively as a foil to Shinichi’s reclusiveness, Sakaki propels social evolution within their circle, his watchful presence at Café Asia weaving him into the Asai family’s orbit. Though his past remains sparingly detailed, his consistent interventions strategically bridge gaps between Shinichi’s introversion and Hana’s tenacity, cementing his role as both architect and observer of shifting relationships.