At the Beginning of the Plasma Cannon, My Water Meter Was Checked!

Gu Xuan traveled from 3000 years later to the present and became an unemployed vagrant. Just when he was at a loss, he suddenly found that the system was following him! After comprehensive analysis, the system recommended that Gu Xuan understand the world through live broadcast. Gu Xuan thought for a while, he had to show some talent during the live broadcast. He couldn't sing or dance, so why not... Use your hands to create a plasma cannon! Unexpectedly, the audience was dumbfounded after the live broadcast. "We thought you were bragging, but we didn't expect you to be serious!" Research Institute: "Who is that scientific madman who is experimenting with plasma cannons? Catch him quickly!" Military: "Okay!" … Gu Xuan: "Huh? I just did a small handiwork, why did the water meter get checked?"