Guess skz member by iconic line

12345678
Across
  1. 2. ICE CREAAAM
  2. 4. I can speak Korean
  3. 6. So Rudeu
  4. 8. Don't touch my sausage
Down
  1. 1. Im Foive
  2. 3. STAA
  3. 5. HOOOOOOL YMOOOLY
  4. 7. Your behaviour is so ugh