I've been concerned. It's been mentioned that she has a weaker constitution. Yet she isn't taking her health more seriously and instead gripping the MC and refusing treatment just cause of... what? Did she have a bad experience, a traumatic event in her past with a boy? Like she went out of her way to hate on this man and for what?
Now your back is all fucked up, if the most important thing is the group and performing then girl you need to reevaluate your priorities. It's a manga so I'm sure he'll miraculously manage but I hope it doesn't turn into something where she can't perform anymore
Thanks for the tl