Dragon: Battle of the Sky is a role-playing game released by Kakukawa Game in Japan. In the game, the player will play a hero who can control the dragon, explore the world of the sky with other players, and fight powerful enemies. In the game, players can collect all kinds of dragons and fight with them. There are also various tasks and activities in the game. Players can explore the sky world, collect dragons, participate in various activities and explore the sky world with other players.