Just because Kris wasn't physically sick or sick in a way that was clearly visible, doesn't mean he wasn't just as ill as Luhan is. Mental illness is highly stigmatized in SK, so it wouldn't be surprising to me if he were severely depressed and hiding it, or if he told the other members, I wouldn't be surprised if they'd told him to suck it up or treated it as though it wasn't a big deal. That's just my theory, personally.
EXACTLY i want to cry and hug you. ive said this before. but he's shown signs of depression.
like ok luhan's illness was physical and able to be seen...
but it doesn't mean that kris wasn't ill we don't know that. There's so many types of illness
there is even physical illness where there's no physical signs man..like...
but i definitely agree with you tbh.