He cooks and clean, clearly the wife if you choose to be so gender bound about it.
But he's the top, also does wood cutting. So I think it's safe to say that he's both? Man and wife?
^_^
male wife
Bold of you to assume that being penetrated makes someone take the traditional female role. They are both males for what the story is concerned, and however the character is designed gender-wise is another thing. This is what is wrong with fujoshi culture.
Even the special ep is so pure! And are you sure he's the wife? More like husband.
^_^