The Story begins with the Sanjo family, one of Japan's most powerful and prestigious clans. Mika, the chairman's granddaughter, is known as a princess. On her wedding day, her fiancé is away due to work, but arrives just in time to save her from an attacker. The couple's love story started years ago when he rescued her, earning her trust and becoming her bodyguard. He now works for her family's company as the sales division chief.