Eun Sian, known as Shanshan to her close friend Hyunee, is popular among the girls at school. This would be wonderful if she were gay, but she isn't. The truth is, she is terrified of men, and her mother is obsessed with shielding her from all males. Suddenly, Yuri, the school's prettiest girl, has confessed to Sian that she has feelings for her. Now Yuri won't stop trailing Sian, which Sian might tolerate, except it appears Yuri wants Sian exclusively... and who knows how far she will go to ensure that outcome.