Sulli's biggest regret in life is not going to college.
Sulli's idol is her mom.
Sulli has aquaphobia (is afraid of water).
Sulli's ideal type is “Someone that is dependable, that doesn’t act cute a lot and listens to everything I say. It would be nice if they were always in the same place. And that they should be a man with straight hair, tidy clothing, sexy, and dignified.
She was considered f(x)’s fake maknae.
Sulli has 2 older brothers and a younger brother.
She debuted as a child actress and had acted in a lot of dramas and movies before debuting with f(x), making her first television appearance in 2005 as the young Princess Seonhwa of Silla in SBS’s “The Ballad of Seodong.”