SEE ALSO: Jessica and Krystal tease fans some more ahead of their variety debut

The Jung sisters show bits and pieces of their everyday life together as they play around with each other and recall their memories together. Jessica also shared that she would playfully tease Krystal by calling her ugly, but Krystal showed that she is just as much of a jokester as her older sister by tickling her.

Check out their cute moments as you wait for the premiere on June 3 at 11 PM KST!