S Kareshi Joujou

Ordinary girl Chiaki finally gets into her dream highschool after tons of hardwork! After a lucky draw on her first visit to the hostel she became the school prince Shimchi's room mate. Although Shimchi looks like a gentleman that everyone admires, privately he may actually be a sadist? And Chiaki is the only female that knows this secret!
The defenseless lamb Chiaki has caught the eye of wild wolf Shimchi! She tries all sorts of methods to escape from him yet still finds herself unable to escape from Shimchi's kisses...