The most likely possibility was that it wasn't a True Immortal, but...
A Profound Immortal.
Moreover, the threat this Profound Immortal posed to him wasn't significant, which indicated that this Profound Immortal might just be an ordinary one, or perhaps, they were in a poor condition.
Having experienced over seven hundred True Immortal-level battles, Han Yi's sense of danger was, he believed, fairly accurate, and the experiences within the Void Tower were an unimaginable treasure to an Immortal Court True Immortal.
This was also why the Immortal Court cultivators were so obsessed with the Void Tower.
"Profound Immortal," Han Yi's expression remained calm, but his fighting spirit was already brewing tumultuously in his heart, eager to erupt, yet he confined it within him with all his might, unbeknownst to the immortals around. Once unleashed, it would surely shake heaven and earth.