Otani-san is too straightforward with her desires and pleasures, and has sex with many different people. Yamashita-kun is a pure boy who wants to monopolize her. This is a strange love story between these two. They have all the issues of possessiveness, jealousy, fighting, boredom, crying, worrying, moping around, and it's just troublesome. Why do people nevertheless keep falling in love and falling in love? This is a revolutionary work that explores the universal illness of “romance”!!