.
.
.
I had completely analyzed every Ability that got upgraded by now, and I couldn't help but find that I had indeed grown stronger out of it right away. But not only through that, but my Stats also increase when I Rank Up my Realm Core, most likely because it is fused with my Soul, and whenever it upgrades, my power also upgrades.
I don't know what's the true end goal of the Realm Core, but it seems like a way for me to create insane abilities that I never thought could be possible in other ways, and it really helps in the long run, giving us unique advantages even over other Supreme Gods and more.
I once more looked into the Status of the Realm Core, as I began to see through it all. The three new Abilities were right there.
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<Realm Core System>
[Realm Core Type: [Primordial Chaos and Heavenly Law Realm Core]
[Realm Core Owner: [Kireina Chaos Lucifer Dark Moon]
[Realm Core Rank: [Supreme God 3/9 Realm]
Check "The Protagonist's Sister Is Actually the Strongest"!