Looks like they’re subverting the porn trope of genderbent guy getting feminized by his body by giving Ishua legitimate body dysmorphia. It also helps in emphasizing his previously expressed inadequacy around not being able to wield his sword. I’m thinking the reason he like the boot camp...
Idk why but this chapter makes me think about how a lot of sexual abuse victims tend to have trouble controlling their bladder because of how badly it messes up their hormones. Maybe there’s some kind of analysis you could make there.