The Invincible Big Cat Starts with the Cub-Raising System

[Blurb]

The world evolved, and all kinds of mutated beasts and plants appeared one after another. Primitive beasts had long since been left behind.

An is a big cat who grew up in a primeval forest with the help of a cub-raising System.

In the end...

A big cat emerged from the primeval forest and stood at the very peak of the world.

Even the cub-raising System was dumbfounded. It had never imagined that the cub-raising System could be used this way.

Note: Blurb subject to change, 4/22

Theme: Work hard to make yourself stronger