Avian enigma is a sci-fi visual novel game featuring in a world where birds have become extinct. The story begins with a young man working in a factory accidentally saves a bird. Soon, a girl who has a mysterious relationship with birds appears in front of him. A romance with a tiny twist begins.

Avian enigma is a sci-fi visual novel game featuring in a world where birds have become extinct. The story begins with a young man working in a factory accidentally saves a bird. Soon, a girl who has a mysterious relationship with birds appears in front of him. A romance with a tiny twist begins.