SEE ALSO: Girl's Day's Hyeri takes on sporty street fashion looks for 'CeCi'

The CF took on the concept of 'Hyeri in EXR training camp' with Hyeri asked to perform military-style routines for her initiation ceremony, during which she kept warming up to the commander's voice with her aegyo. Behind the scenes, Hyeri got serious with her charismatic poses and expressions as the new face of the brand.

Check out the CF and making film for the sports casual-wear brand above and below! You can also check out the previously released pictures through 'CeCi' in the article here!