It was merely the Demon Realm. The Immortal Realm was still, overall, part of one large plane. Even though it suffered a certain degree of rejection from the Immortal Realm, the effect was relatively limited—far from the terrifying planar suppression Lu Xiaotian had experienced when he went from the Spirit Realm to the Spirit Ruins Mystic Realm, or when the Primordial Sword Demon went from the Immortal Realm to the Spirit Realm.
For example, even though these True Immortal-level wolfmen and wolf riders had suffered considerable suppression, the True Immortals of the Guileling Immortal Region on the Immortal Realm's side were still no match for them. In their clashes with the Howling Moon Wolf Clan, casualties had been heavy.
Furthermore, as time fell out of balance, the Profound Immortal- and True Immortal-level wolfmen and wolf riders who had arrived earlier gradually adapted to the Immortal Realm. The planar power from the Demon Realm remaining on their bodies had been almost completely washed away, and their strength had gradually recovered. When they returned to the Demon Realm from the Illusory Mist Swamp, these members of the Howling Moon Wolf Clan would have to undergo the same transformation again. However, having experienced it once, the time required for the corresponding change would be shortened to a certain extent.
Outside the Demon-Suppressing Tower, Lu Xiaotian had been unable to sense the restrictions placed on these wolf riders very clearly. But now, inside the Demon-Suppressing Tower, he could already sense the wondrous effects of the planar power's suppression.
It seemed that part of the planar power of the Demon Realm still remained on the bodies of the Howling Moon Wolf Clan. It was also a form of spatial power, and it exerted a certain repulsive force against the independent space within the Demon-Suppressing Tower.