Shik-nam is a student obsessed with his grades and studying, to the extent that solving problems and equations can reach erotic levels for him. Needless to say, his interest in anything other than his studies is near zero. Then a complication arises. The animal kingdom is furious with what the world has become, so they sent Yegrinna, the dog princess, to punish sinful humans for dirtying the world by turning them into animals. And out of all the places she appears, it is in our unfortunate protagonist's room. What awaits Shik-nam and Yegrinna now that their fateful meeting has set in motion plans long since in wait?