In This World, Does Learning Well Mean Being Invincible?

Liu Hao was originally a science student with an ordinary undergraduate degree. He was electrocuted while working on his graduation thesis. When he woke up, he became a first-year elementary school student. And this world is very different from my previous world. There are students wearing high school uniforms flying in the sky, and the TV shows a certain college student who survived the thunder and broke through to graduate school? This world is familiar to Liu Hao's world but completely different. If the introduction is insufficient, please read the text. . ???ω??? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.