I'm the Owner of the Pokémon Day Care In the World of Pokémon - Chapter 1383: Journey to the Diamond Domain

Jiang Pengji got something called the Court Intrigue Stream System.
System: “Your goal is to become the most prestigious woman in the kingdom (the Queen)!”
Jiang Pengji: “Okay, System. No problem!”
Years later, she met the target by becoming the most prestigious woman (the Empress).
Jiang Pengji: “Well done, no?”

- Description from Novelupdates

Struck down amid the battle, the Hero and Demon King meet their demise. As their souls linger on the edge of the afterlife, a mysterious force intervenes, merging their fragmented souls together with a new being. Rusty, the living armor, now affected by their memories and presence, embarks on his own quest. Will he seek revenge on those who betrayed the hero, or will he fulfill the desires of the fallen demon king? or instead, forge his own path?

A young boy, Asuma Haruto, is transferred to another world. Without having any means to return home, he has no choice but to live in this parallel universe.

Armed with only his knowledge of making soap, will Haruto be able to safely make a living here?

This is a story about how our protagonist creates his own business out of his hobby of making soap and then gradually manages his business and gets rich.

Cho Ryu Hyang was good at math from a young age. When he enrolled into the The Theoretical Maths and Martial Arts School, the teacher, Jo Gi Chun, recognized Cho Ryu Hyang’s talent immediately and took him in.