Hakutō is an abandoned cat found by Kentarō Momose and Yūsei Shirosaki inside a cardboard box during a walk. His previous owner discarded him for scratching a couch, though Hakutō internally maintains he chose to run away due to enduring power harassment, reflecting his deep distrust of humans. Shirosaki adopts him, naming the cat "Hakutō" by combining the kanji for "white" (白) from his own surname and "peach" (桃) from Momose's surname, creating "white peach." Initially wary—especially of Shirosaki's cat-like eyes—Hakutō slowly accepts his new owner's kindness, recognizing Shirosaki's authentic care and absence of abandonment tendencies. His defining trait is a tsundere personality: outwardly aloof, indifferent, or critical, yet masking profound affection and dependence. He struggles to openly express his fondness for Shirosaki, often maintaining a facade of detachment while internally acknowledging his growing attachment and newfound sense of security within his home. Hakutō's internal monologues reveal vulnerability, including his fear of rejection and quiet gratitude for the stability Shirosaki provides. Hakutō's journey parallels Momose's recovery from workplace trauma, symbolizing healing through patient, unconditional support. His presence reinforces the narrative's central themes of trust and emotional safety.