hmmm...but wouldnt her returning to how she originally should have been mean that she can go back to her world now that her weight is back to how it should have been since the start then? or is it just her appearance that changed back while her weight is still the same as before (when she was chubby)? also if her weight is back to normal then that means only MC has to lose weight now right? what if he used the collar to make himself lose weigth then? i mean if she got fat from the curse then the MC should get thin right?
Let's be real: if she didn't get slim fast then this manga would've gotten canned due to the lack of a "decent" (as in, according to the desire of the average jap) waifu to fawn over.
@tuatara1
Elf-san wa Yaserarenai and Alicia-san's Diet Quest come to mind immediately, and they follow the theme of weight loss just as much as this manga, but their male MCs are super fit in comparison. This manga did seem to be the only one where both male and female leads had weight issues (until this chapter, obv).