'IDKAIST cherry blossom party' took place at the front yard of the department building from April 16th 4PM. It was a perfect day to celebrate the turning of the season and the party place was filled with cherry trees in full bloom. Over 80 people including professors, officers, and students of ID enjoyed the events and party food. Since 2007, we specify the dress code for the party. This year's party was held under theme ‘Dress code: Energetic Yellow', and everybody who attended the party dressed up in yellow. IDKAIST cherry blossom party has been successfully develeped as a symbolic annual event of the department.