"Don't you have an urge to devour this crystal?"
Ferdinand watched as the black smoke surrounding his offspring's body grew denser, indicating that his power had entered a boiling and turbulent state. He knew firsthand how difficult it was to control power in this state, which made him all the more curious.
"Yes, the power within me really wants to devour and merge with this crystal."
"Then why haven't you?" Ferdinand asked, looking at his offspring who remained composed, his curiosity growing.
"I control the power within my body, not the other way around. I am the master," Muria replied.
Every Titan learns to control every bit of power within themselves from the moment of birth, and they don't need any other Titan for this; it's an innate awareness they are born with.
