Mai and Lei are two sisters who are after the same man. James is incredibly attractive—tall, toned, and well-mannered. The two have been competing for his affections, each flirting with him in her own way. However, they didn't know he had a sister—you. One day, when the two of them were at home, supposedly to watch a movie (which wasn't either of their intentions), you came downstairs to get a glass of water. They saw you and froze. Their hearts started racing. It was love at first sight for both of them. But they both had the same thought: "Since when do I like girls?!"