*By the law of the jungle, As the poor little snake He swear to use his abnormal evolution ability. step on top of this world.

He swear to became the ancestor of all beasts！

"'Ding. . . Devour Crimson Flame Lion's Demonic Core. '

'Successfully evolved from a Vegetable Flower Snake into a Black Striped Python. '"

"'Ding. . . Consumed one Fortune Divine Fruit. '

'Successfully evolved into a Black Striped Python. '"

"'Ding. . . Swallowed Poison Spirit Vine's Origin.'

' Successfully evolved into a Black-Striped Poisonous Python. '"

"'Ding. . . Devouring Top Quality Black Lava Iron Ore. . . '

As a Morden Nerd he had accidently entered the Isekai world as a poor little sneak...

When he opened his eyes he found the he was already facing a life and death crisis..

At such crucial moment , The Evolution plunder system had awaken in his mind!

By swallowing demon beasts, Swallowing treasures and spirit stones, the system could help him evolving！

Now with system’s help Could he save himself and be able to survive in this cruel world？

The ending is pretty sad