I thought she was going to ask about that... So she only meant the Beyonder characteristic... Klein muttered inwardly, unconsciously straightening his back as he spoke in the Fool's deep, confident voice:
"That Mystic Seer characteristic was seized by Antigonus after he killed the elder Zarathus during the Four Emperors War. But as a natural-born mythical creature, the Half Fool was in poor condition at the time, so he never attempted to accommodate it. Instead, he kept it with him until Little Zarathus obtained the Antigonus Family Notebook, infiltrated Mist Town, and took the characteristic away.
"As a result, the characteristic contains the mental imprints of both generations of Zarathus, especially Little Zarathus's intense emotions before his death. The portion belonging to the Celestial Worthy is actually quite small. This is entirely different from Antigonus, whose condition had already deteriorated badly and within whom the Celestial Worthy's consciousness was awakening."
When Klein stole the Mystic Seer characteristic from the sealed Antigonus, made it into a potion, and advanced to Sequence 1, he had indeed sensed the Celestial Worthy's consciousness. As an aspect of the Oldest One's personality, this great existence subjected Klein to mental shocks that were utterly opposed yet shared the same source—a lofty, detached indifference, a mad urge to destroy everything, and more—forcing him to constantly devote part of his attention to resisting them.
Fortunately, the consciousness within the Beyonder characteristic was not strong. This was partly because, with the apocalypse approaching, the spirits of both the Oldest One and the Celestial Worthy were steadily fading. The other, most crucial reason was that this Mystic Seer characteristic was not one from the "curtain" the Celestial Worthy had painstakingly prepared for his own resurrection. Instead, it was a "secondhand" characteristic mingled with the mental imprints of the Annihilation Demonic