Syphiinz

Apollo Kaiser, a boy who bore the unlucky fate of being unable to grow strong, was condemned by his family. 

Discarded by his mother and abused by others, Apollo gives in to his rage.

However, this action results in his death. Many would believe it to be the end, but Apollo's death was a required catalyst.

The Demon Monarch System finds its heir and attaches to his soul, bringing him to a new world where he starts his journey to supremacy.

This difficult journey rife with conflict, conquest, and brutality shall serve as Apollo's temperance.

Watch as the heir of the Demon Monarch rises above all, conquers Sin, subjugates unthinkable enemies, and even brings about the destruction of worlds!

The rise of the next Demon Monarch begins...

Book Discord: https://discord.gg/vH3BWtDSnC
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The Demon Monarch System

A stream of notifications appeared before Apollo's view, indicating a rapid increase in his attributes. However, while it was immediate, it wasn't as substantial as the increase he received from absorbing Xonnomor, Gallmath, and Arleo's essence. All three of them were Archdemons at the time, so the growth was phenomenal.

Meanwhile, after summing up the total number of attributes obtained from this bunch, it barely equated to the essence gained from Xonnomor alone.

〈System: The essence of many Lesser Demons and Greater Demons has been absorbed. [Unable to increase Evolution Meter.]〉

〈System: +7.5% Strength and +10% Demonic Anima Reserves.〉

'Compared to before, this is kind of underwhelming,' Apollo thought. After all, the essence of over 50 demons didn't even equate to 10%! That meant, on average, each demon only increased Apollo's strength by 0.15%.

Aura of Slaughter