f(x)'s Krystal showed her casual side in a recent photo shoot for 'The Celebrity'! With bare feet and comfortable clothes, Krystal showcased her natural makeup and tousled hair by posing snugly in a messy home environment.

Asked about her goals in 2014, Krystal responded wisely, "I would like to be one step up. I want to think about everything step by step. To reach my goals, I will have to think in the long term and slowly, slowly get closer. Both business-wise and personally, I would like to develop a more mature mind." 

SEE ALSO: The top 10 advertisement models most favored by the Korean public