
Aokana: Four Rhythm Across the Blue is a romantic visual novel where players take on the role of Masaya Hinata. A large portion of the gameplay involves reading through the story's text and dialogue. The written content is paired with character illustrations that show who Masaya is interacting with, all set against detailed background visuals. As the game progresses, players come across CG images at key moments, which replace the usual background and character visuals. The game features a branching storyline with several possible endings, and the direction of the plot is determined by the choices the player makes throughout the experience.
In a world where soaring through the skies is as easy as pedaling a bike, the sport "Flying Circus" has taken the world by storm. After the discovery of anti-gravitons, special footwear known as Anti-Graviton Shoes, or Grav Shoes, became an instant global phenomenon. With the advent of Grav Shoes came a whole new realm of possibilities for people to explore. Not long after this technological breakthrough, a brand-new sport was born—Flying Circus—where players use the shoes to compete in the vast open sky. Masaya Hinata, once hailed as a prodigy, abandoned Flying Circus after a devastating loss, though there was another, deeper reason behind his decision... But his lost passion is rekindled when he begins teaching the new transfer student, Asuka Kurashina, how to fly. This time, Masaya steps into the world of Flying Circus not as a competitor, but as a coach. Sometimes pushing, sometimes supporting, he and his team set out to challenge the top student athletes in Japan. Now, with Asuka at his side, just how high can he rise? This is a story of love between those who met in the sky, and the friends who stand by them.
| Vita | February 25, 2016 |
| PS4 | January 26, 2017 |
| Switch | March 29, 2018 |
| iOS | August 16, 2018 |
| Android | August 20, 2018 |
| PC | September 27, 2019 |

| Audio | Subtitles | Interface | |
|---|---|---|---|
| 简体中文 | ✓ | ✓ | |
| 繁體中文 | ✓ | ✓ | |
| English (US) | ✓ | ✓ | |
| 日本語 | ✓ | ✓ | ✓ |