...I'm not particularly comfortable in wielding a blade forged from the bones of a once living person, no matter how powerful it may be.

[Byleth's tone is subdued. As if dying wasn't bad enough, Sothis's corpse had been violated and her bones forged into a weapon. Who would even do such a thing?]

In any case, cutting through reality... perhaps it wasn't the blade, so much as the Other Byleth having a more refined control over Sothis's divine powers, as it sounds she was indisposed in some way. Perhaps I should investigate why my Sothis is silent... if I could wake her up, perhaps allowing her control of my body once more will grant us the power needed to cross the dimensional boundaries back to our world.