Etrian Odyssey II: NDS Cartridge (First-Person DRPG)​​

The story takes place in a kingdom called Lagaard. At the border of the kingdom stands a towering giant tree and maze - the Yggdrasil Labyrinth. Legend has it that at the top of the maze, there is a divine artifact called 'The Grail of Kings'. This Holy Grail possesses immense power to grant any wish, thus attracting countless adventurers to challenge the maze, but no one has succeeded so far. 

In summary, the plot of World Tree Maze II: The Holy Grail of Kings is mainly driven by players' curiosity about unknown mazes, their pursuit of legendary Holy Grail, and the gradually revealed maze secrets during the exploration process. It does not have a mandatory linear storyline, but provides a challenging and exploratory stage for players to experience their own adventure legend through their own hands (drawing maps) and strategies (forming teams, challenging strong enemies), and ultimately decide the fate of the Holy Grail.