When earnest otaku Sung-yoon, who primarily indulges in ‘dating sims’, becomes infatuated with a stunning girl resembling his favorite character ‘Dalsa’, he finds himself drunkenly checking into a motel with her... Why... does my back feel like I’ve been stabbed? "Indeed, you used your hole. I’m a man with balls, too...^^" This Dalsa is actually a man...? This cross-dresser is, in fact, the most popular guy in our major, Woo Soo-hee...? The charming and adorable love story of Usu-hee, a schemer who cross-dresses to capture Sung-yoon's heart, and Sung-yoon, a geeky otaku who is easily captivated by attractive faces.