Start by Swallowing Space

"Because I was weak and cowardly, I lost what I loved; my heart became empty, so I became greedy." With the power of devouring, the male protagonist wants to devour everything to satisfy his never-ending desire. The male protagonist devours space monsters at the beginning and obtains the laws of space. Devour the fire demon, obtain the law of fire, fuse with powerful fire patterns, and obtain a more powerful origin of fire. … The male protagonist reaches the realm of the Supreme Being and devours the Demonic Supreme Being in a gluttonous manner...