[This feels very nostalgic for Utsusemimaru, who used to wash his comrades' backs when they bathed together during the Sengoku Period. Has it really been since then that he's done this? It feels like a lifetime away.
And yet something about washing Daigo's back feels... different. Utsusemimaru can't identify exactly what it is, but there's something at once both comfortable and embarrassing about touching Daigo so freely. It's probably because it's been so long since he's done this!]