Talk:Gargantua/@comment-26544002-20180914000220/@comment-79.31.118.191-20200328151756

He explicitly states to himeself that he feels tha need to do so alone, to prove that he is worthy of leading the NPCs, and he doesn't want them to fight.

The NPCs disagree and he says to them he has to do it to keep the Floor Guardians in reserve because it may be a trap of whoever mindcontrolled Shalltear. The FG see through it (Ainz didn't really expect they would fall for it), but Albedo is convinced and stops Demiurge from interfiring.

Calling in Gargantua would be a risk, to out one of AOG trump cards, and would go against Ainz's purpose, to fight Shalltear to prove himself