Realm Core's Existence

Lereza shuddered as she stood in the air. She was absolutely shaken by the information Calypsea provided her with.

The Realm Core was pleading with her? The Realm Cores were known to be practically inanimate yet alive as there were many mysterious reactions and phenomenons that displayed behavior equivalent to the realm having its own vitality, the very first being the core barring bonding to anyone who isn't an Immortal Emperor Stage or equivalent stage expert.

Of course, people below the Immortal Emperor Stage could also form a bond with a Lower Realm's Core, but anyone above them cannot. It was an ironclad rule changed by no one in the history of the human race.