Shanshan, also called Eun Sian by everyone else, is adored by the girls at her school. Though this would usually be a good thing, it's not for her since she's not into girls. Instead, Shanshan has an intense phobia of men, and her mother is always on guard for her. But now, the most attractive girl in school, Yuri, has come forward and confessed her feelings for Shanshan. Unfortunately, Yuri won't leave Shanshan alone, and it seems like she wants to monopolize her. Shanshan is worried about what Yuri might do to make that happen.