Invincible Treasure Body

A young man from Earth traveled to another world with a treasure from the fairy world and embarked on an alternative path of cultivating weapons. Want to become powerful? Warriors need to meditate and exercise, magicians need to meditate and study, but Robin only needs to keep eating, using his body as a cauldron to refine all things, and finally refine each part of his body into a unique magic weapon, and build an invincible body. A strong life does not require practice!