Jun is furious when he learns of Ran's lie from 13 years ago. However, even though she tries to take out her anger on her sister, she is stopped by Ritsu. On the other hand, even though Ran realizes that Ritsu has revived his feelings for Jun, she vows to keep Ritsu's relationship with her no matter what she does. One day, while discussing Ritsu's affair with Hikaru, Ran suddenly feels nauseous. From that moment on, Ran's plan begins.
