#Perhaps Izutsumi fulfilling her desires as she has them makes her near-invisible to the demon.

[identityarchitect]

Also, it's interesting to me that there was never really any hint of Izutsumi being swayed by the demon. She seems pretty resistant to it, actually.

With Marcille there are plenty of signs on reread that she could become a dungeon lord, and of course Laios' desires have been rather plainative from the start.

But Izutsumi's desires are complicated. As we see in the succubus chapter, she has the desires of both a beast and a tallman. She has those conflicting desires as a result of her nature as a beastkin, but she also has complicated desires as an individual. There's that one panel near the end where she's looking despondent and thinking "If I only do what I like, I won't be able to see the people I like, or eat the food I want. Worse, if I only do what I like, I won't be able to eat at all."

Izutsumi has never been in conflict with her desires. She satisfies herself endlessly and without patience. But her desires are complex enough that she finds herself frustrated in her attempts to achieve them, both by her own emotions (like when Inutade gets injured clearing the roof when Izutsumi was meant to do it) and by others (like... basically 90% of her early interactions with Laios' party.)

She seems like a perfect target for a dungeon lord: I even think she has a strong contender for that "all-consuming" desire the demon tends to go for (Marcille's desire to make everyone live to the same age, Laios' desire to become a monster, Thistle's desire to find Delgal and protect the Golden Kingdom, etc) in wanting to become fully human again. I don't know if the demon can grant that to her, but it would certainly promise so.

And yet, Izutsumi has always been resistant to having her desires being preyed on. Like I mentioned earlier, there's the succubus chapter, but there's also after Laios talks to the demon. Izutsumi acts near instantly, killing Laios before the others even have a chance to figure out what's going on. And I don't think this is Izutsumi-typical flippantness either. We know she cares about Laios & the party by this point in the story, that's why she came with them to fight the demon in the first place. She'd never do anything she didn't want to.

I don't really have a point to this. It's just neat.