Lantern holds a senior position at the bookstore, directly managing the section dedicated to Shueisha publications. Her role involves overseeing manga titles from this publisher, requiring familiarity with series featured in Weekly Shonen Jump and related imprints.

Her visual design is defined by a jack-o'-lantern worn as a headpiece, creating a distinctive mask, and a stocky physique.

Personality-wise, Lantern exhibits a stern and authoritative demeanor. She typically employs a direct, commanding tone with colleagues, reflecting her senior status. This strictness contrasts sharply with her notably informal interactions with Honda, indicating a specific familiarity between them.

As one of the store's longest-tenured staff members, her seniority establishes her as a knowledgeable figure, especially regarding operational protocols and publisher-specific workflows. This extensive experience underpins her confident, no-nonsense approach to tasks.

Information regarding her background story, character development, or expanded role in other media remains unavailable beyond her established workplace role and traits.