In five years, Udi's Biological Level rose from Level 21 Mid-level to Level 22 Mid-level, precisely increasing by one Major Level.
The reason for such a rapid rise is that as the number of Void Creatures increased, most dead Void creatures weren't resurrected by Udi; their power has already merged with Udi's.
Of course, they didn't truly die. The souls of these deceased Void creatures returned to the Gray-White Space, living there almost like unchanging eternal inhabitants, much like believers in a Divine Kingdom.
Unless one day, Udi is willing to resurrect their bodies in reality, these Void creatures can't appear in the Star Realm again.
However, most Void creatures have little chance of being resurrected.
Because resurrecting them requires extracting the part of the power belonging to Void Life from Udi, which undoubtedly weakens Udi's strength.
