Hirotaka Nifuji stands as a central figure—tall and fair-skinned with striking blue eyes and short bluish-black hair parted into middle-swept bangs. Severe nearsightedness necessitates his high-spec black glasses, while his professional attire features a navy blue suit with a purple tie, contrasting his home preference for long-sleeved shirts and track pants. Born March 20 and standing 184 cm tall with blood type B, his name carries layered meaning: "Hirotaka" blends characters for "wide, large" and "bulk," while "Nifuji" draws from "two" and "wisteria." He presents a stoic, unemotional exterior with rare expressions, though complex emotions simmer beneath. Socially reserved, he engages minimally with others, sustaining few friendships while favoring solitude. Gaming anchors his existence—he claims life without it would mean death—and he excels in FPS, fighting, and action genres through extensive experience. His otaku identity remains unapologetic, encompassing manga/anime consumption and figurine collecting, particularly of voluptuous female characters, a noted irony given his partner's physique. Professionally efficient as a systems engineer, he handles heavier workloads faster than peers. He occasionally socializes with coworkers Tarō Kabakura (whom he respects as a senpai) and Hanako Koyanagi over drinks. His relationship with childhood friend Narumi Momose drives personal evolution. Long harboring romantic feelings that intensified in school, adolescent Hirotaka impulsively pierced his ears after seeing her with a pierced-ear boyfriend and took up smoking to impress her, leading to lasting addiction. As adults reunited at work, he proposed during a bar outing, securing her acceptance by promising comic event assistance. Subtle growth emerges in their dynamic: his in-person reserve contrasts text messages peppered with emoticons. He supports Narumi’s fujoshi pursuits without judgment, aids her doujinshi events, joins cosplay photoshoots (even cross-dressing at her request), and eventually marries her. After Narumi adopts his surname, they welcome a son, prompting Hirotaka to quit smoking. Fatherhood sees him gaming with his son—who consistently loses—while Narumi creates doujinshi. Family includes younger brother Naoya Nifuji; Hirotaka masks deep concern for him behind apparent indifference, maintaining relaxed, low-conflict interactions. He approves of Naoya's relationship with Kō Sakuragi during their sparse encounters. Additional traits encompass his unused ear piercings, high alcohol tolerance, and fearlessness demonstrated by stoicism on horror-themed rides.