Singer and actor Seo In-guk showed off various charming sides in a fashion pictorial for Marie Claire. In one picture, he acts child-like, while in other pictures he gives a sexy smile. Seo was wearing suits and casual outfits while boasting a natural and chic mood. The photos can be seen in the September issue of Marie Claire. By Cho Han-na, Intern reporter (hnncho@heraldcorp.com)(Picture credit: marie claire)