Plus Size - Illustrated Comic Universe - Page 34 (Patreon)

The secret to Miharu’s system is actually fairly basic.

Raw material goes in and is restructured. Carbon and other elements are extracted and converted into medication.

Normally, remaining substances would be very active and cause her body damage. The arm converts the remaining substance into long carbon chains with a phospholipid head which is non reactive.

That substance is fat.

Simple science!