Saya, the wife of the Yukimi conglomerate, and Leona, the daughter of the Kanzaki family who have served the Yukimi family for generations. The head of the Yukimi family, Kozo, gave her a life without any inconvenience, and not only Saya but also Leona savored her happiness. One day after such a life continues for a while, Leona is strictly ordered by Kozo to deliver a tribute to a man named Kataoka, and she visits Saya and her mansion. At the mansion, the two hear a disgusting fact from Kataoka's mouth. In a situation where she can't escape, Leona embraces her determination to protect Saya...
