Koo Hye-sun's recent pictures
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Koo posted current pictures of herself.
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She posted them on her Twitter on the 12th, saying, "End of Year exams",
In the picture she is pressing her lips tight with a cute expression.
One thing about this picture is that she revealed her collar bone, giving a kind of sexy look never seen in her before.
Netizens say, "Koo Hye-sun is pretty", "She's pretty sexy" and more.