Sadly for fans, On Style aired the last episode of 'Jessica & Krystal' on August 5, showing another heartwarming sisterly moment when Krystal sweetly surprised Jessica with a special event that moved her to tears. 

The two of them enjoyed a break at a hotel in Seoul in this episode.  Krystal went up to the room first and prepared a surprise event for her unsuspecting sister, who came in later and looked for Krystal.

Krystal said on the phone, "I'm hiding behind the curtains," so Jessica went there, pulled back the curtains, and was surprised by all the pictures of their memories from the show plastered behind the curtains.  

Krystal had also posted a handwritten message saying, "I feel so reassured because you are always on my side.  I am also on your side, unnie.  I'm always grateful and let's cry no more ^___^."  Despite the last words on the message, the two sisters embraced each other and shed tears.  

SEE ALSO: Krystal confirmed to appear in upcoming film 'Audition 109' alongside actor Jung Woo

In relation to the event, Krystal said, "I've always liked writing letters.  A letter is a way to express something that is hard to say."

Jessica showed her gratitude, saying, "I think it is an excuse to say I am busy with work. It's a way to neglect someone who is closest to you.  I need to try to do better.  That's why I am more sorry."

Did you see their sweet sisterly moment on the last episode and are you sad that it's the end of the show?