Let's make this birthday one to remember.

31 years old (Born on October 12, 1993)

Happy Birthday, Seo Kang-joon! From charming us as the lovable second lead in "Cunning Single Lady" to keeping our suspicions delightfully alive in "The Suspicious Housekeeper," you've proven that your acting skills are just like fine wine—getting better and smoother with age. And let's not forget those music video appearances; whether it's Hello Venus or Ailee's soulful tunes, you always manage to steal hearts effortlessly.

As a member of 5urprise, you're truly full of surprises (pun intended!). May this birthday bring fewer suspicious housekeepers and more cunning single ladies into your life—or perhaps vice versa? Keep dazzling us!