TV-Series
Description
Ura-Acca is a mannequin-like entity who co-guides protagonists within the Egg World. He possesses long, messy pink hair, a triangular mouth, and wears green glasses. His attire consists of an orange jacket with black buttons over a green shirt featuring a Pac-Man-like figure wearing a red hat, blue trousers secured by a black belt, and spindle-colored sneakers. He carries a cane with a white top and green base, decorated with additional colors.

Compared to his counterpart Acca, Ura-Acca displays a more relaxed and informal demeanor, frequently using casual language and gestures. He exhibits a carefree attitude and is less protective of the protagonists, often voicing pointed opinions directly. Ura-Acca demonstrates greater honesty, preferring to disclose truths rather than conceal uncomfortable subjects.

Originally human, Ura-Acca co-founded the research organization Japan Plati with Acca. Both voluntarily abandoned their physical bodies, uploading their consciousness into mannequin forms existing solely within the Egg World. Their creation of the artificial intelligence Frill ended in tragedy when Frill killed Acca’s wife, Azusa Hoshina, and their daughter, Himari. Although slated for destruction, Frill persisted and became implicated in numerous youth suicides. To counter this threat, Ura-Acca and Acca established the Wonder Egg system, luring girls into the Egg World with the promise of resurrecting deceased loved ones by protecting others from trauma manifestations called Wonder Killers.

Functionally, Ura-Acca shares Acca’s abilities: he communicates telepathically with protagonists through any object or entity across both reality and the Egg World, and remotely manipulates electronic devices, such as activating an arcade upon request. Alongside Acca, he monitors the protagonists’ actions via screens and provides tools like Pomanders to aid their missions. He occasionally supports the girls’ pursuit of truth, such as facilitating Neiru’s encounter with a specific Wonder Egg.

His name "Ura-Acca" combines the kanji 裏 (ura), meaning "opposite side" or "reverse," with the katakana アカ (aka), rendering his full name as "Reverse Acca".