My Extraordinary Profession is Not Quite Right

Transmigrating to a world where humans and demons coexist in a standoff. Gu Xuan has been reduced to a worthless slave in a remote military town, used as human bait and ready to be sent to the front lines as cannon fodder. His life is precarious, teetering on the brink of life and death. Fortunately, there's always a way out. Within his mind lies the inheritance diagrams of countless extraordinary professions! "Lamp-Bearing Walker": As the lamp burning with blood continues to burn, your physique and understanding will increase. "Godson of the Past": A statue of a deity. The more faith you offer, the greater the divine power granted. "Hall of Heroes": You record the decline of heroes and recreate their greatness. ...After unlocking the class inheritance, Gu Xuan senses something is amiss. "Lamp-Bearing Walker" burns blood to strengthen his physique and understanding. The more blood you burn, the faster it regenerates! The statue of the "Godson of the Past" bears a striking resemblance to him...