[The nod is still firm, but Allura's expression softens ever so slightly.]

You aren't the only one brought here from difficult circumstances, and you aren't the first to desire a clean slate. [Even her. Back home she's a Paladin of Voltron, a general in a war spanning nearly the whole universe. Her hands have even more blood on them, even if her cause is just. And Shiro has that in common with the two of them.] What matters is whether you mean it now.