"I wish you wouldn't call me a 'calamity sorcerer' or anything like that."

I was a science student in Japan when one day I was hit by a truck, and when I woke up, I had been reborn in a sword and magic fantasy world. Born as the second son of the Rieranorc Margrave family that rules the northernmost part of the kingdom with magical aptitude, I spend my days researching magic or not researching it. Since I have a feminine face and my mother likes cute things, I'm always cross-dressing and often mistaken for a girl, but I don't mind since my mother smiles at me. I've become close friends with the princess and caught the attention of many nobles, but I don't mind since it's fun being with the princess. I privatized an entire dungeon, established a magical tool company, sold magical devices while utilizing knowledge from my past life, and got criticized for it, but I don't mi──well, I really wish they wouldn't call me a "natural disaster mage."