Itsuki Aoyama, a 28-year-old narcotics agent in an elite anti-drug unit, combines sharp professionalism with refined composure. Born September 23, his 181 cm frame, jet-black hair, and distinctive lilac eyes command attention. Hailing from a prominent family, his privileged upbringing forged a polished, disciplined persona admired for both relentless work ethic and striking presence.

Beneath his capable exterior lies a discreet flaw: infamously illegible handwriting, carefully hidden from colleagues. Privately, he indulges a culinary passion, crafting intricate breakfasts daily during the 30 minutes preceding work. Though respected, he remains guarded, deflecting inquiries about a shadowed past partnership. His interactions with Tsukasa Asagiri, a former acquaintance, simmer with unaddressed friction, prompting deliberate restraint.

The kanji in his name—"tree" (樹) for Itsuki and "blue mountain" (青山) for Aoyama—subtly mirror natural motifs. Specializing in tactical investigation and mission coordination, he anchors his team’s operations, though his documented history offers no insight into potential growth beyond established case files.