[Aether doesn't confirm or deny it, wondering if this is just a guess on Sunday's part or if it's yet another thing that they have in common. Perhaps he will know the answer one day, but for now it's better to leave this topic aside.]

Thank you.

[Again, his gratitude is genuine.]

I hope you will be reunited with your sister as well.

[He wishes that Sunday and Robin will be spared the hardships that he and Lumine are going through. Aether has seen his share of families broken by fate, separated or unable to ever reunite and it always breaks his heart.]

I should probably be going now... Unless you'd like to walk with me. We could search together.