It's also a very smart thing for Emi to do. If we get too much of a tangible reward from something with a strong emotional aspect, the emotion starts to dull as our brain decides the money/ whatever is why we do it.
NEET she may have been, but Emi is smart enough to want her love to be "clean" of such "alternate explanations". It's also what makes this vanilla in many of OUR heads; as Genryuusai noted below, part of us would wonder if it was just for the money if she hadn't, because we'd be wondering it about ourselves.
At first, that title made me think of some rather unpleasant tags (mostly due to the 'unemployed' bit) but that all went away when I noticed both the Vanilla and Osananajimi tag.
Because rather than selling herself to random people, she's...well, 'selling' herself to her loving Osananajimi instead.
I was honestly hoping for an ending where they got married and it was like happy times where he'd pay the bills and she'd wait for him at home or something like that, but I guess this ending isn't too bad either.
NEET she may have been, but Emi is smart enough to want her love to be "clean" of such "alternate explanations". It's also what makes this vanilla in many of OUR heads; as Genryuusai noted below, part of us would wonder if it was just for the money if she hadn't, because we'd be wondering it about ourselves.
HENTAI PSYCHOLOGY!