Falling in love with him... or his twin?

Twin brothers Eunha and Eunsang are polar opposites—Eunha is shy and studies hard, while Eunsang is arrogant and a complete delinquent. When June, Eunha's crush, mistakes Eunha for Eunsang, Eunha decides to keep up the act. How long can he keep his secret?

(Source: Manta)