U-KISS' Kiseop�turned 24 (23 in international age) on January 17 and thanked fans for their birthday wishes through a handwritten letter!

Happy Birthday To KISEOP???? ???? 24?? ??!???? ?? ??? ?? ????~^^

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U-KISS tweeted, "Happy Birthday To KISEOP? Today is Kiseop's 24th birthday! Have a happy day with Kiseop~^^�#Happy24thKiseopDay�#Kiseopah,"�along with the handwritten letter.

Kiseop wrote, "Oh my oh my oh my!! It's already my 24th birthday! I am also aging.. kekeke Kiss me~! Thanks for congratulating me, and I hope you continue to age along with me in the future~! keke I love you?."

Happy Birthday, Kiseop!