The hero of Voice Paradise is on his way home when his space ship crash-lands on Earth. He has a crucial mission to complete within one month, or he'll miss his chance to return to his planet. With his ship damaged and no clear cause for the crash, the hero must figure out what went wrong. That's when he encounters three anime girls - Citron, Jasmine, and Cinnamon - who claim they're the heroines from a popular TV anime series called "Elfin Triangle". They explain that their voices may hold the key to repairing the ship, but they need to find out which one is responsible for the radio wave interference.
Voice Paradise combines elements of adventure games with an internal schedule. Each location visit costs a game day, and the hero has 30 days to solve the mystery. Locations include TV studios, CD shops, and other places related to anime and voice acting. The game delves into Japanese voice actresses, making it more than just entertainment - it's educational. To succeed, the hero must gather information, take part in quizzes, and narrow down the search to identify the correct voice actress.