What's with the thinness-shaming in the comment section? Your sword waifu isn't being underfed. There's no need to complain just because she doesn't suit your fetishes; there be people who are naturally thin and people who appreciate thin waifus.
The waifus have been pretty varied so far for what this manga is but people losing their shit when the new sword is revealed to have an angular design
Oh well they both still touch upon my fetishes at least