He wasn't fully born within the Magic Power of the Demon King and, due to being nurtured by the Demon King's Power, half of him is like an average member of the Demon Clan, belonging to the normal category of demons.
If it could be said that a Demon is the existence closest to the Demon King, then this Half-demon is half as close to the Demon King, half as close to the Demon Clan.
"Because of this, he cannot be considered a true child of our mother, nor can he really be counted as our brother, even his power is incomplete, constantly fluctuating between Transcend and Limit Levels."
Chafne spoke like this.
"What I mean by being between Transcend and Limit Levels is not that his power exceeds the Limit Level and does not reach the Transcend Level, but that his power continuously fluctuates between these two tiers."
