[Byleth promptly piles in the supplies into Fred, though he did have a moment of indecision where he realised that an overabundance of food supplies would mean less space to carry books... but it'd be best to be overprepared than under, so he dedicated a good half of Fred's innards towards food supply.]

Yes, it's quite intriguing, isn't it?

[He zipped Fred up, and turned to face Yuri.]

I inquired about the methods of its construction, and it's crafted from some form of oil? I'm assuming some clever spell work must be used to solidify it...

[It'll blow Byleth's mind to know about the various uses of crude oil, which in Fodlan is deemed to be a smelly, dangerous liquid whose only use is its flammability... and even then, other, more convenient substances were better suited. If Rhea had any say of it Fodlan will never learn about the mysteries of plastic...]