Kiyosumi Shirakawa is a salaryman and editor working in the fast-paced world of magazine publishing. His daily life is consumed by long hours, stress, and a sense of exhaustion, all of which take a toll on his physical and emotional well-being. In search of a place to escape the demands of his job and the crushing expectations of adulthood, Shirakawa began visiting Nazuna Nanakusa, offering her his blood in exchange for moments of peace, rest, and comfort.

Their arrangement—purely transactional on the surface provided Shirakawa a rare opportunity to relax without judgment, as Nazuna’s vampiric feeding was paired with the comforting presence she offered her clients. Though he didn’t see her romantically, he grew to appreciate her as someone who made his burdens feel temporarily lighter.

Shirakawa has the appearance of a tired but well-kept adult male, with short black hair, rectangular glasses, and business attire, typically a white shirt with a loosened tie or a suit depending on the time of day. His haggard posture and dark under-eye circles reflect the stress of his profession and lack of proper rest.

Though generally expressionless or fatigued, Shirakawa exhibits subtle emotional depth when speaking honestly about his life or confronting the realities of his reliance on Nazuna.

Kiyosumi is a polite, quiet, and overworked individual who often bottles up his feelings. He’s dedicated to his job, perhaps to a fault, and struggles with work-life imbalance. He is not overtly emotional or expressive, but beneath his calm surface lies a man weighed down by stress, loneliness, and guilt for not living more freely.

Unlike many of Nazuna’s blood donors, Shirakawa is not driven by lust or infatuation, but by a quiet desperation to rest. He is reflective and self-aware, and his interactions with Nazuna and Kou show that he understands the temporary nature of the comfort he seeks.

• Nazuna’s Past Client
  Shirakawa appears in the series as a former regular of Nazuna’s, having frequently visited her to offer his blood in exchange for sleep and relaxation. Their arrangement was purely functional Nazuna drank his blood, and in return, he was granted relief from his stressful life.

• Meeting Kou Yamori
  When Shirakawa and Kou cross paths, Kou is shocked to realize the nature of Nazuna’s previous relationships. It leads to an important moment of growth for Kou, who begins to understand that Nazuna had a life and emotional entanglements—before him. Shirakawa, in turn, shows respect for Kou and offers insight into why people are drawn to Nazuna, reminding Kou that comfort and emotional presence can be just as valuable as romance.