Principal, Please, Don't Go Fishing in the School Lake!

[Urban + System + Hardcore Science Fiction + Extreme Contrast] Su Yun traveled through time. As a third-year student in the Department of Fisheries, he awakened the "Eternal Air Force" physique. In the final practical examination room, others were fishing for crucian carp, but Su Yun fished down evidence of a Class A wanted criminal! The school was numb, the police were crazy, and Su Yun felt aggrieved: "Teacher, I really just want to catch a fish and do business!" Then things started to get out of hand. He fished out the national jade seal in the smelly ditch, pulled out the Tiger tank in the school lake, and even picked up the Taikoo family's nuclear submarine with one hand during practical operations on the high seas! When Su Yun swung the fishing line into space and used the moon as a pendant, the whole world knelt down. Small theater: Principal: "Su Yun, I beg you, go and harm the sea, don't hook yourself in the school lake!" Su Yun: "Principal, I just caught a black cube, which seems to be the reset button of the earth..." Principal: "(Swallows the whole bottle of quick-acting heart-saving pills) Quick! Weld all the faucets in the school! Don't leave a drop of water!"