Imagine being over ~35 years in combined age and running away from the girl who has spent years in hopes of marrying you without any dialogue with her or empathetic consideration. If you want to read a story where the MC does that and justifies it as for their mutual good go right ahead with this manga.

Otherwise it's your typical boy genius isekai where the MC grinds from childhood and does broken/innovative things with magic, then goes on to adventure. Same old same old if you want something to waste your time on and don't care about the first point.

3/10 if I could turn back time and not ever read it I would