He's summed up pretty well the difference between a soul and a spirit, Esteban notices, even if he hadn't quite said those words per say. It really does seem their worlds have tangent beliefs, at least regarding the self, and there's some comfort from sharing something as intangible as this between them both. His large hand comes to pet Snapper's surprisingly smooth skin, losing himself in the gentle motion.

"Seto...?" he mentions, his voice lighter, and a smidge of confusion dancing in his eyes. Realization dawns on him a little slower than usual, but of course, Kai-- Seto might not like to be referred to by his last name all the time-- the name of his cold and ruthless foster father. Oh! Oh, of course he can! And with that, he beams, grinning as sunnily as he can while he encourages his friend.

"Then I'll do that, Seto!" It's not a nickname, but Esteban will take it! It makes him happy that his friend allowed-gave him this, and happiness is always something Esteban collects, like the greedy being he is.

It's a peaceful feeling. Sharing this with Kaiba, the journal slowly getting filled. The warmth the carriage has been set at lets Esteban unwind, and if he could just close his eyes and ignore the Void outside the glass, he could pretend that they are out somewhere in the mountains, the sun beaming down upon them and the gentle day wrapped around this serenity. It can't stay quiet for long-- Esteban can't stay quiet for long-- but there is comfort to be had in their simple companionship.

"So about y'r moons--" he eagerly starts, but it could be anything that fills the silence. Anything at all.

Esteban is happy. And he only hopes that Seto can share in this happiness as well.