[He listens to all of this, and of course he is going to immediately latch onto the bit of hope Kashuu is offering.]

Right, okay. So we find his sword, wherever it may be, and protect him until you and Yasusada-san can take him back to your home.

[It seems straightforward enough. And Atsushi does better if he has something hopeful to hang onto, even if that hope might get crushed later. He does seem more focused and determined now, that side of Atsushi that peeked out last weekend is coming back.]