The Invincible Treasure Body

A young man from Earth transmigrates to another world carrying a priceless treasure from the immortal realm, and embarks on an unconventional path of artifact cultivation.

Want to get stronger? Warriors meditate and train, while mages study and practice their concentration. Robin only has to keep eating. Using his body as a cauldron, he refines all things, eventually turning each part of his body into a unique magical treasure and forging an invincible body.

A badass life doesn't need cultivation!