Alex could feel his body hungrily absorbing mana from the surroundings.
Just as he attached the final string of the mana vein, he could feel his mana being circulated inside of them, but the main point was that this time they were not moving because Alex was burning his mana and making them move.
They were moving because that's how they function.
But then the problem was the amount of mana.
The amount of mana needed to be circulated inside the mana veins was vast as it was all over the body.
So, the first thing that happens after the process of having one's mana veins attached and functioning is filling them up with mana.
The mana suction is so high even for a normal person that it sucks mana from anything and everything that contains mana and is in the surroundings of the one breaking through.
But that was for normal people, for Alex it would be higher as he had higher mana due to him having the celestial incubus bloodline.