Soul-swapping:Imperial concubine rebirth - Chapter 138

As a transmigrator turned extraordinary creature of the human race, he found the world to be more colorful than he had imagined.To more easily access everything this new realm had to offer, he first needed a special resume. Then, he had to find the right place in a city perennially shrouded in fog to fill out an application, and the last and most critical step...— was to kill a chicken or catch a mouse.

In a world where magic and sorcery flourish came a tale of a nobody who grew into a legend. Partake in the conquests and tribulations of a great army where warriors live day-to-day, seeking the thrill of combat.

No sign in, no punch card.

Do not rely on breathing, do not rely on walking, do not rely on heartbeat.

The system is produced in one step

- Description from novelbuddy

This stands at the forefront of strategy guides to Life (a shitty video game)!