Grandmaster rank

Only then did Asher realize the truth. The ancient beast hadn't activated its Domain after waking up. It had been maintaining it the entire time. The island itself was already inside the Domain.

Then another realization struck Asher. The moment he had stepped onto the island, he had already entered the beast's Domain. From the very beginning, the ancient beast had known about his presence. It had simply chosen to ignore him and continue sleeping.

Asher silently looked at the enormous creature, and his suspicion grew even stronger.

'This beast... it's definitely far stronger than it appears.'

Maintaining a Domain was supposed to consume an enormous amount of mana. Even Grandmasters couldn't keep theirs active indefinitely.