I Use Science to Crush Fighting Spirit and Magic

Lin Yue, a college student in science and engineering, accidentally traveled through time and almost died. He was rescued by the "Gray Crow Mercenary Group" and started practicing from scratch. There are fighting spirit and magic, dwarf forge, elven forest sea, and beast tribe. The strong ones are judged by their rank: fighter/magician level 1-10, 11 is the saint, 12 is the demigod, and 13 is the legendary god. Lin Yue doesn't believe in mystery, but only in structure and data—— He treats fighting spirit as an "internal combustion engine" and magic as an "externally controlled engine". He uses alchemy and engineering to rewrite the power language of this world: fighting spirit deflectors, "simplified magic arrays" that can be activated by fighting spirit, constant temperature stoves, water purification devices, lighting crystal pillars that can be used by civilians... Starting from a border town, he gradually turns "miracles" into daily life.