In the past, through the largest Abyssal Rift, they could come to the world of humans. On one hand, they could hunt flesh and blood, and on the other hand, they could consume the excessive demons.
The hungry ghosts invaded the Abyssal Rift, and occasionally, some undying demons would lead a demon army to harass it.
Later, during the battles, it was discovered that those hungry ghosts, after nourishment, seemed to grow stronger as a whole and at a faster pace.
Even the demons abandoned using hungry ghosts to consume too many low-level demons and instead turned to slaughter each other, for after all, it didn't matter whom they killed, as long as they killed someone.
At this moment, in the Abyss, various natural disasters continued, killing off a large number of low-level demons, and no Great Devil cared; they wished more would die.
Whenever a demon died in the Abyss, it was like rotten meat in a pot, irrelevant to whether it would deplete the overall power of the Abyss.
