Someone so young is already celebrating seven years in the entertainment industry! Well, she is a child actress!

Kim So Hyun posted her thanks on Twitter for the "Happy 7th anniversary" wishes from fans. The sweet child star wrote, "I'm in the midst of filming 'Pure Love' in Goheung, but today is so hot, too!  Thank you for all of the supportive messages and videos that were created with the utmost sincerity and sent to me for my 7th anniversary since debut!  It's very hot, but I hope that there will only be things to make you smile :)  a picture that looks refreshing," and added one that indeed looks like it'll fight off the summer heat!

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She's on the waves with the cool water splashing on her cute face!  Congratulations on seven amazing years of acting!  Surely there will be many more awesome years to come.