Beauty, wisdom, personality, degree of love - the "princess ranking" is regarded as absolute in this harem. Amerei, who entered the harem at a young age, is the 133rd concubine. If nothing is done, the love of His Majesty, the Emperor will only remain a dream. But then a mysterious young man, Kasei, met Amerei and she ended up falling in love with him. Kissing!? No! This body is only for His Majesty, the Emperor! However, after I was embraced by him my "princess ranking" soared! Wait! Could his true identity be that of the Emperor himself?