Hina Ebina, a classmate linked to Hayato Hayama’s social circle, is defined by her fervent passion for boys’ love (BL) narratives. She actively engineers scenarios to pair male peers like Hachiman Hikigaya and Hayato, injecting playful chaos into group interactions through her yaoi-fueled imagination.

Physically, she stands tall with a bobbed brown haircut, vivid green eyes, and distinctive red half-framed glasses—traits that subtly shift in later seasons through updated hairstyles and eyewear. Her demeanor oscillates between lively engagement in BL discussions and quiet observation within her friend circle, reflecting a dual nature of extroversion and introspection.

Beneath her vibrant facade lies a layered self-awareness; she openly admits to imposing her interests on others, self-labeling as “rotten to the core”—a nod to past struggles with bullying and fragile social bonds. During a summer camp arc, she reveals sharp perceptiveness, dissecting superficial attempts to mend relationships and empathizing with peers like Rumi Tsurumi’s emotional isolation.

Her leadership shines during school events, where she orchestrates cultural festival plays and athletic committee projects, highlighting her creativity and strategic acumen. Though she enforces emotional boundaries to shield vulnerability, rare moments—like acknowledging Hachiman’s genuine support—hint at guarded appreciation.

Outside BL, she enjoys historical novels, sketching, and Ikebukuro event outings, paired with talents for intricate illustrations and marathon queue sessions. Her surname, Ebina, blends meanings of “sea,” “old age,” and “name,” while Hina fuses “princess” with “vegetables.”