Description: This is a science fiction. Player controls the character to complete a series of events. In role-playing, players need to interact with NPCs to get information and progress through levels. The player may encounter two types of ghosts and one crystal, which can affect the character's status when touched. The character's state affects the scene it enters. After completing a series of events, players experience the game's story, and the scenes they go to will affect the content of the ending.