Tetsuya Naruto is an ideal bachelor, with a wealthy family background and handsome appearance. Many women compete against each other to gain Tetsuya's affection and marry him. Those women are Wakana Shikura, Reina Kawahara, Rio Ichinose, Ichika Morishita, Rie Shimada, Riko Suzaki, and Sei Endō. While the women battle against each other, one woman from the group murders Tetsuya.