The structured facts describe Park Eun Young, a member of ZZBest with a screenwriter occupation — but the narrative material provided relates entirely to Hyomin (Park Sun-young) of T-ara, a different person. There is no usable narrative material about Park Eun Young in what has been supplied.
Given the sourcing rules — use only provided material, never invent — writing a substantive profile of Park Eun Young is not possible here. Applying the Hyomin material to this subject would be factually incorrect.
What can be stated from the structured facts alone:
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Park Eun Young is a South Korean screenwriter and a member of the group ZZBest (지지베스트).
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That is the extent of what the provided material supports. To produce a fuller profile, additional sourced narrative material about Park Eun Young — career history, works, discography, or coverage — would be needed.