溯回青空 is a captivating role-playing game designed for Android that blends classic Japanese themes with a post-apocalyptic setting. Players take on the role of a 'Demon King,' leading an immortal knight brigade to combat gods in a battle for planetary dominance. The game features a diverse cast of characters, each with distinct personalities and backgrounds, allowing players to forge unique bonds as they progress through the story. With vibrant animations and dynamic voice acting, the combat experience is both exhilarating and visually appealing, making each battle feel impactful.

Beyond combat, players can engage in base management within a mysterious floating garden, where they can run a ramen shop, clean a library, and delve into human history, adding depth to the gameplay. The game showcases a rich and intricate world with hidden lore, allowing players to immerse themselves fully in the narrative without the need to memorize every detail. The in-game glossary and database provide easy access to lore and terminology, enhancing the overall experience.