The Ultimate Weapon of Magic and Science

The stark-naked, handsome, young man looked intently at a winged reptile creeping in front of him, His lips, closed tight since setting foot in this new realm, began to move as words echoed in the shadowy realm of awareness.

"It has been determined that the leaders of the plan and all related individuals are dead, communication with Earth has been completely severed. Transitioning to autonomous operation mode. Updating log-in name to the fully planned 'Li Lin'. Given the current situation, autonomous task B4 is selected."

The boy, now known as Li Lin, paused briefly, his voice taking on a chilling edge as if from the depths of hell. "Infiltrate and invade the low-level civilization, colonize it, Earthify it."

The ultimate weapon in the form of a young man, in this magical alien world, sensed a familiar scent - war.

And so, he continued his mission.