[That's a relief against his embarrassment, but also... aw...]

[Tonbokiri smiles knowingly when Ichigo mentions Yagen.]

I'd wondered if Yagen Toushirou-dono was like that. He doesn't even seem to like attention, never mind concern. But one can tell he is also very thoughtful and kind.

[Tonbokiri's smile becomes more thoughtful as well.]

To appreciate it but not admit it... Perhaps our brothers are more alike than it first appears.