Actually, Chen Guan had a vague suspicion before; when he previously absorbed one realm, he only leveled up once.
The Centaur Secret Realm, a small race's realm like this, is probably just at the level of Realm 1.
In theory, for every level Chen Guan advances, the needed Primordial Energy doubles, requiring two Realm 1s to level up once.
Earlier, Chen Guan had some thoughts that when he last leveled up, perhaps the energy of Realm 1 overflowed, so refining the energy of a Void Secret Realm now should be enough to let him level up again.
It seems now he was overthinking it; without two Realm 1s, it's probably impossible to level up.
Previously, while at the Immortal Mountain Sect, he only absorbed part of the energy there and leveled up several times. First, the Secret Realm levels at the Immortal Mountain Sect were high, and second, Chen Guan's level was low, requiring less energy.
