The moment Zhang Yi was bound by the "Brave System" when he traveled through time, he thought he was the chosen one - until the system issued the first task: [Send a cup of pearl milk tea with three-point sugar and less ice to His Majesty the Demon King, and 50% of his health will be deducted over time].
He stood at the door of the Demon King's castle holding the milk tea cup and realized that this system was not only fake, but also a "life assistant tool" sent by the Demon King's camp. The subsequent tasks are even more outrageous: combing the "bone hair" of the Lich's pet skeleton, telling cold jokes to the piranha to coax it to bloom, and repairing the wing feathers of fallen angels that were blown away by the wind...
In order to survive, Zhang Yihao held the title of "brave" and worked as the Demon King's butler, but one day when he was using dish soap to help the Lich wash the experimental beaker, he accidentally discovered that "surfactants can enhance the stability of magic potions"; while teaching skeletons to use pulleys to move piles of bones, he figured out that "the mechanical structure can optimize the conduction of the magic circle."
From then on, the style of painting changed——
The Demon King chased him and asked him "How to transform a microwave oven into an instant fireball stove". The Templars secretly bought his "Guide to Using the Leverage Principle to Defeat the Dragon" written by him. Even the slimes on the roadside held up leaves and begged him: "Can you teach me how to use osmotic pressure to accumulate enough evolutionary energy?"
The whole world is grabbing this "walking treasure house of modern knowledge", but Zhang Yi just wants to hug the system and scold: Where is the promised brave man to save the world? Why did he become a technical consultant for the two worlds of gods and demons?
