- Hikueru City is a fictional city created for the anime and manga series "Kakegurui." It serves as the main setting for the story, where the prestigious Hyakkaou Private Academy is located. The city is known for its gambling culture, with the academy's students engaging in high-stakes gambling activities. Hikueru City also features various gambling establishments, luxurious resorts, and a vibrant nightlife. The city's atmosphere is highly competitive and intense, reflecting the gambling-centric theme of the series.