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100%'s Minwoo thanked fans through a handwritten message on his group's official fan cafe and wrote, "100%'s 1st birthday!! Our Perfection who watched over us like sunflowers..<3 We love, thank.. and treasure you. Let's continue to be together forever."

The boys also shared on their me2day, "We truly thank our Perfection who have been with us for the past year! Let's congratulate each other! Congrats on our 1st anniversary!", and celebrated with photos of them each holding up one finger in honor of their 1st anniversary alongside their fan-made cakes.

Congrats, 100%!