Lili Ryu, a werewolf with an evident fondness for canine traits, takes up residence in the attic of Yoshihito, a 23-year-old unemployed man. During her first exploration of the house, she is ambushed by Vivian, a vampire whose sudden assault forces Lili to unleash her transformative abilities, shielding both herself and Yoshihito. This violent clash becomes Yoshihito’s abrupt gateway into a clandestine realm of supernatural beings coexisting with humans.

Her attire subtly mirrors her wolfish nature, featuring adaptable elements like a cropped t-shirt crafted from standard apparel—practical guidance offered for costume replication. Within the narrative, she consistently emerges as a steadfast guardian in clashes against paranormal threats.

Available sources outline no expansion of her origins, personal drives, or evolution beyond this premise, nor do they reference extended storylines in supplementary media, films, or official adaptations.