People be having a fucking problem with Taeheo not calling his parents mom and dad or some shit... But yall don't say shit when people out there call their parents sir and ma'am when speaking to them.
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Or even other family dynamics like calling them by a different title, I.e the queen and kings children to their parents.
This is just a different family dynamic. I love that both parents are loving and affectionate, and are yet strict to discipline their kid.