
You can't use a wheelchair like that!
https://www.mangago.zone/read-manga/engaged_to_a_dying_marquis_in_my_sister_s_place/uu/nml_chapter-4/pg-51/
The person on the wheelchair will fall face first from that ramp.
You have to do it walking backwards, first the person helping and then the wheelchair

Jonak mother must have suffered a lot, she was pregnant but her baby ended in an Ork belly.
Maybe she got pregnant young to avoid being abducted but it happened to her anyway.
Maybe Jonak is stronger because he was birthed by an Ork?

It's very easy:
1- He was abandoned in the road leading to the Ork camp
2- the magic fabric was said to exchange the content of the bellies of the two that sleep together
3- So Jonak mother was abducted when was already pregnant but the Orks didn't notice so they made the magic exchange and and Ork mother gave birth to Jonak ( so the Ork mother nurtured Jonak inside her belly and that made him stronger than most men and he only got diarrhea from eating beasts and the dragon venom doesn't work much on him) ( although the venom thing could just be because he is Again mate)
It was beautiful but hearing about the spoilers from the novel I feel dissatisfied