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As I ate the fruit, not only my Spirit Orb developed, but my body, soul and magic circle, the physique, psyche, and magic circle tiers respectively all increased. With that came new abilities as well.
Every Physique and Psyche come with Abilities with each Tier, while the previous Abilities are always upgraded to the new Tier, growing, and developing stronger.
Physiques might or might not be something of this world, but they're surely an amazing way to grow stronger through the cultivation of energies converged into the soul passively enchanting physical strength beyond just leveling up.
[You acquired the [Physique] Tier 4 Ability: [Vampiric Bloodline]!]
At long last, the Vampiric Blood Emperor Physique, the one I had forged using my previous life's memories and knowledge to make it into the ultimate physique has reached Tier 4, meaning that it was finally developing this one Ability, Vampiric Bloodline!