The Rules of Making Gold

An unlucky guy who was unfortunate and decadent in his previous life acquired such a heaven-defying alchemical law as the Golden Rule after traveling through time. But he did not become the legendary protagonist who drove the gears of destiny to turn. He just became the owner of a certain grocery store. He also doesn't have the aura of a bastard that makes everyone admire him. Instead, he often acts as a little brother to others. He has not yet become the king of flowers attracting beauties from all walks of life, he has just been running errands for beauties. That's because he believes in low-key luxury and has been on the road of pretending to be a pig and eating the tiger, going further and further until he becomes the biggest behind-the-scenes manipulator in the world.