天空のアムネジア is a fantasy RPG game developed by m-style, available for Android platform and free to play. The game has a unique storyline where the souls of people who have made significant contributions are reincarnated as heroes in the world of the game, and the player's character is one of them. However, the player's character has lost their memory and must explore the world with other heroes to regain it.

The game features beautiful heroines with unique skills and abilities that can be combined to form a party and fight against monsters and powerful rivals. The game has both single-player and multiplayer modes, allowing players to level up their characters and compete in knight battles with 10 members versus 10. The game also has an avatar customization system, allowing players to personalize their characters' appearance with different hairstyles and expressions. The game has a simple and easy-to-understand action system, and players can strategize and fight against strong enemies with command operations. Overall, the game is perfect for those who enjoy playing RPGs, especially those who love beautiful heroines and character development.