Hatsuka Suzushiro is a male vampire with an androgynous appearance and feminine fashion sense. He has a small stature and slender build, featuring masculine upper body traits combined with feminine hips. His visual presentation includes shoulder-length black hair styled in an undercut with blunt bangs, granite grey eyes, and a preference for dresses, coats, and calf-length boots. This cross-dressing stems from personal aesthetic choice; he considers himself male and states feminine attire suits him better while attracting potential targets regardless of gender. Personality-wise, Hatsuka exhibits a generally laid-back and observant demeanor compared to other vampires, often maintaining emotional distance. He demonstrates perceptive abilities, frequently predicting others' sentences before completion. Typically level-headed and less confrontational than his peers, he nonetheless displays unexpected enthusiasm in specific scenarios, such as offering romantic advice to Nazuna Nanakusa or reacting with flustered embarrassment when complimented unexpectedly. However, a manipulative and authoritative undercurrent defines his treatment of his three vampire familiars (one male, two females). He intentionally conditioned them into psychological dependence before turning them, enforcing strict obedience, punishing dissent, and utilizing them as literal furniture—permitting only himself or guests to use his sole living room sofa. He rationalizes love as brainwashing and planned to similarly manipulate protagonist Kou Yamori into irreversible dependence to facilitate his vampiric transformation. His vampiric abilities encompass standard traits: immortality, superhuman strength, speed, and durability, levitation, intangibility, accelerated regeneration, and supernatural charm. He demonstrates practical application of these powers, such as catching falling characters mid-descent. Relationships reveal nuanced dynamics. He interacts politely with Nazuna Nanakusa, addressing her formally as "Ms. Nanakusa," and participates in group activities with vampire companions Seri Kikiyou, Kabura Honda, Nico Hirata, and Midori Kohakobe. He assisted Midori's maid café promotion by wearing a maid outfit on Halloween. His encounter with Kou Yamori included proposing to turn him, arguing mutual understanding as males would ease Kou's transition; Kou's rejection stemmed from disinterest in Hatsuka's methods rather than his gender presentation. A notable incident occurred when Mahiru Seki and Akira Asai discovered his biological gender at a public bathhouse, causing significant surprise. His name derives from "suzushiro," an archaic term for daikon radish, continuing the series' theme of naming vampires after spring herbs. His living space reflects unconventional preferences, having demolished a floor to merge two apartments vertically. No comprehensive backstory has been revealed, with only brief flashbacks hinting at past experiences involving gender expression and conformity pressures.