Lord of Science and Magic:My Girls Couldn't Be Such Coquettish

As the brave one, Lucas was summoned to Isekai, and the girls informed him that they needed to have sex with him to improve their fighting power.
"What the hell is this?"
Lucas possessed a system capable of combining science and magic. He was able to access a portion of the abilities of the girls who had sex with him.
Unlike other novel protagonists, Lucas refused to be a slave to violence. He preferred to solve the problem peacefully.
He began to create things that did not exist in this world, such as yogurt, explosives, hamburgers, disco, magical guns, airships, and so on.
Lucas appeared to be igniting an industrial revolution in Isekai.
However, everything was always far worse than expected. Jealous of him, his enemies began to destroy everything he had created.
"I do intend to live an ordinary life," sighed Lucas, who had to do everything in his power to destroy his enemies.