Han Jisung of Stray Kids accidentally called Nayeon "unnie" on live today.
I am not sure if this works:
Here's a transcript:
A fan asked if he had listened to Nayeon's new song.
He answered:
Yes, Nayeon unnie's abcd is so nice... sunbaenim... I've listened to sunbaenim's abcd well... aigoo... The song is nice too. [goes off camera to laugh]