You Are Asked to Teach as a Substitute, and You Lead the Students to Build Mechas?

Xiao Feng's teacher received a temporary research assignment, and because he was afraid that the students' courses would be missed, he asked Xiao Feng to take over the class. In the first class, Xiao Feng started to explain the principles of mecha manufacturing directly! The students were confused. "Mechas are something that only exists in science fiction movies. It's possible to make them like this." As soon as he finished speaking, Xiao Feng directly ignited the nuclear fusion reactor. "Are you serious?!" At this point, many students have not even taken the required courses. All members began to learn to make mechas. A few months later, the mecha was successfully launched, and Xiao Feng took a group of students to the road to test the mecha. All members were caught due to speeding on the ground and fighting with fighter jets in the air... "My teacher asked me to teach as a substitute. He asked me to teach something related to machinery, so I led them to build mechas." "..." All the relevant personnel looked at each other... Then a phone call came to Teacher Xiao Feng, and he was also confused. "What are you talking about? All my students were caught because their mechas were speeding and racing with fighter jets??" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.