Kaiba still can't quite believe he's given up so much of his heart, so many secrets. But Esteban still greets him with a smile, still sits close to him...that friendship book was a big deal to him, wasn't it. He can see the importance of such a gesture as well, and given what he's been trying back on the train...hm. He has some thinking to do.

"I used to think happiness was nothing but a trick. A state of fooling oneself before you see the world as it really is. But between my brother, Yugi, the people I met here...you included..."

He leans in and slings a gentle arm around Esteban in a half-hug. It's a tentative gesture that he's not totally used to, but he wants to try.

"I'm seeing the world another way these days."