You can see a pretty good example in "Heavenly Sword’s Grand Saga". The regressed
Spoiler!
to another body
protagonist looses a lot of weight in about a very short time comparitively, and has all kinds of flabby skin.
"The Previous Life Murim Ranker" has somewhat less drastic weight loss, but he should be showing flabby skin by now too. But then, we haven't seen him without his robe much. Otherwise, the artist understands how to show how the face and rest of the angles change with gradual weight loss.
The MC here has an advantage the other two don't. They're adults, while he's a kid, so his teenage growth will tighten up some of his flabby skin.
The Galactic Navy Officer Becomes an Adventurer
by Takuma Tomomasa , A_Itoh
Available on mangabuddy for reading, and for sale at https://www.amazon.com/dp/B0BT6V7CMM
by Takuma Tomomasa , A_Itoh
Available on mangabuddy for reading, and for sale at https://www.amazon.com/dp/B0BT6V7CMM
