Rainbow member Kim Ji Sook prepared a surprise event on her blog.

On her official blog, 'Ssooklog,' Jisook wrote, 'Ssooklog's third official event: from today til the 11th for five days.

Jisook hand-wrote this post herself in cute writing and colorings. The topic was about her best vacation ideas.

Jisook wrote, "There is a way to get away from the intense heat! This event is for a summer vacation. I hope you have a good summer, I will cheer for you with my Ssooklog!"

For the event, Jisook prepared a luggage carrier as a prize. She said she chose a bag to make sure that people are taking care of their fashion during travel.

In the past, Jisook has posted her every day life, cooking, as well as making small cute things on her own from scratch. She has over 7,000 visitors per day and over 1.6 million viewers total.

Jisook is a reporter on KBS 'Celebrity News' as well as on many variety programs.