Mystery: I Traveled on the Same Day As Klein and Took Charge of Theft

On a rainy night in Tingen in 1349, Klein and I crossed into a mysterious world on the same day.Knowing the entire plot, he neither seizes the Source Castle nor takes the Fool's position, but specializes in stealthily following the path of thieves, and takes control of the cracks in fate.Secretly covering the main storyline, redeeming the unresolved issues of the original work, walking alongside the Fool's destiny, stealing the switch between life and death, ascending to the top of the Miracle Master, and becoming the strongest guardian in the shadows.