For a moment, Rode almost thought he was going to become the King of Devouring Excrement like Asa, but fortunately, he quickly understood the description of Star Energy.

The function of [Glutton] was clear: devour ashes and then generate specific substances.

Here, "ashes" referred to monster ash.

When a monster is killed, the foundation of its existence collapses, the black mist becomes immeasurable, returns to the void, and becomes an intangible and formless existence again. The residual power within the monster condenses into monster ash, which is the purest form of life energy, generally used for making potions and fuel. However, the remaining useless debris turns into ash, which is what the [Glutton] devours.