jiwoo has literally rushed into battles (formal and real) to protect his friends, so obviously his friends would do the same for him. if you feel annoyed with his friends for wanting to protect him, then i hope you realize you're literally also hating one of the traits that makes you love jiwoo — the fact that he cares so much about the people around him he'd risk his life to save them, formalities be damned.
jiwoo has literally rushed into battles (formal and real) to protect his friends, so obviously his friends would do the same for him. if you feel annoyed with his friends for wanting to protect him, then i hope you realize you're literally also hating one of the traits that makes you love jiwoo — the fact that he cares so much about the people around him he'd risk his life to save them, formalities be damned.