UNDERGOING EDITING (mainly for grammar cause I'm annoyed at myself)
"Hyung, can you be allergic to people?"
The problem poor innocent Mark Lee had was that he was allergic to sunlight. Not violently enough that he wasn't allowed outside but just enough to be scratching and sneezing all day. Whenever he was in sunlight it just flared up.
And apparently this also applied to people with very specific nicknames.
or in which Mark is allergic to sunlight, and consequently allergic Haechan
WARNINGS IN AUTHOR NOTE