[ From her periphery, she looks back at him. A single brow lifts slightly, which then shifts into a slight cant of her head. It seems she's puzzled by his question. ] For fitting the charter to you, it's my magic, so the cost is mine.

[ --As far as she knows, anyway. Again: different world, different magics. She doesn't think she has to repeat herself on that unknown again.

She blinks once, then, only latently understanding what he's actually asking. A small, embarrassed 'oh' escapes her, and she adds: ] You're the "eidolon", in this case. As for what it'd cost to summon yourself afterward, Jill already mentioned it takes a... "heavy price". [ Their health, she mentioned, and eventually, their lives.

At least with Rem's offer, he wouldn't have to worry about someone else forcing their life essence to drain. Rem had already been worried she had cost Jill some of her life that very same morning. Avoiding that would be ideal. ] I'm sorry, but... I wouldn't be able to change that part for you.