If this was me, I would try creating a corporation called Jieun Kim Inc. and getting an EIN (Employer ID Number, basically a SS number for corporations) and see if that helps in any way.
I’ve known people that created FIRSTNAME LASTNAME INC companies many many years ago and whenever they got a personal check made out in their name it went into their “corporate self” account. I don’t know how widespread this is/was but I only found out by paying for things with checks and finding the canceled check had been deposited into a Corporate account.
