Just Traveled Through the Parallel World and Became an NPC

Everyone knows that dreams are fake, However, what you believe in your dream is true, The boy came to the parallel world, Enter the real game world, There is a beautiful head maid, a gentle lord's wife, and a capable queen. . . . . . There are also seductive succubi and stunning elf beauties, I can't tell which part is real and which part is virtual. Everyone knows reality is true, But how do you know this is not a dream. . . . . . . This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.