... That was a terribly weighted statement. Chihiro could pick up on it, expression turning more solemn as she took in his words. She reached out, looking to find his hand if she could. She wasn't sure what else to do as reassurance other than offer some form of contact.

Osaka Castle was once the site of the Tokugawa coming into power. Its destruction was the final lament of the same clan leaving power, in so many ways. She couldn't imagine what it would feel like to someone like Ichigo, when he had no way of escaping a building that was burnt and razed. Chihiro only remembered a portion of that history; she knew, in a vague way, that Osaka Castle was burned down when the new government of the time came into power.

History feels a lot different when talking to people (human or otherwise) who've lived through it.

"I'm sorry they left you behind. I'm sorry that the people who came after also hurt you. You didn't deserve that." No one deserved to be left behind and incinerated. Even if they were a sword; but she can't vouch for the concerns of people hundreds of years before her time. They may well have had less of an appreciation for history and historic significance and respect for the very art of swordmaking that did, indeed, fall out of favour once the samurai was out of the graces of the nation. Yet that hadn't been true back then, had it? She had no way to know.