Krystal shared what's in her bag for the 'Charles & Keith' spring summer campaign.

In the interview clip above, the f(x) member opens up about how happy she is to be the brand's ambassador as well as her most memorable moment from the photo shoot. Krystal then figures out what's exactly in her bag, including one of her favorite albums, pens and chalk, and more.

Watch Krystal's 'Charles & Keith' spring summer campaign above, and make sure to turn on the English captions.