Conquering the World of Monsters with Modern Technology

The protagonist is a half-demon who transmigrates to the modern world, then takes things like televisions back with her to attract other demons. She uses catnip to tame them. The protagonist brings back new crops, farm tools, chemical fertilizers, comics, televisions, penicillin and other antibiotics, flashlights, telescopes, lighters, cement, and tourmaline. Theme: You only win if you dare to give it your all.