Jaeun Moon had a secret.
As someone who strove to be perfect in all aspects, there was something that prevented her from reaching her goal. A thorn on her side that won't go away no matter how hard she tried. Luckily, avoiding this ingredient all-together, allowed her to live life normally.
She was allergic to garlic.
It may sound silly to some. Why would she make such a big deal out of a simple allergy? There were many people in the world with allergies, it was a common problem to have. Jaeun Moon wasn't alone when it came to her troubles. But due to her personality, she believed this allergy was a blemish to her perfect existence.
She had to be perfect.