Krystal shows her support for Jessica's 'SHINE'

Jessica's book titled 'SHINE' is out and of course, her equally beautiful sister is full support!

Here is Krystal showing some love for Jessica's book~

"my sister's debut novel #SHINE is OUT NOW!so proud of u, 
love u all the way Jessica.syj 💖#readSHINE #SHINEeveryday ✨"
Krystal SHINE

Aside from that, Krystal also shared pictures with her friends.

Krystal's Instagram