Min-Min's younger brother. Faces financial ruin and is temporarily kicked out of the family home. Returns after his child's birth, leading to a confrontation with his wife when his ex-girlfriend Yun-Yun shows up uninvited. Ultimately reconciles with his wife after a domestic accident reveals his fragility.
Min-Min and A-Di share a close sibling bond, navigating family responsibilities together.
A-Di serves as an uncle figure, experiencing his own struggles while connected to his niece.
A-Di maintains an uncle-nephew relationship within the extended family structure.
Mr. Ota's business dealings indirectly intersect with the family's economic stability.
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