Zatiel did not move for an entire week, and the only thing he did was continue devouring those giant cubes of meat as he maintained his body's metabolism multiplied by one hundred.
Normally a Rank 0 Animus could not maintain this condition for such a long time. Still, since Zatiel was using the magic from the Rank 3 elder brain's mind and the immense life force and vitality that his bloodline gave him, he did not find it difficult to keep going for this long without resting.
Of course, there was still the mental fatigue, but the feeling of his power growing at such an impressive speed was truly satisfying for Zatiel, so he did not find any problem in maintaining his concentration.
He would have wanted to keep training for more time, but unfortunately, the date that Heinz told him the kingdom members would arrive to create his magic tower was approaching, so he needed to go and meet them at the agreed location.