A girl from the present wakes up to find herself living in the past as a princess. If I remember correctly she was a Chinese princess or at least a woman of high standing. It also turns out that since the princess was mad with her brother for starting a harem she had started her own with a bunch of young men. The girl from the future is shocked by this and tries to live this new life. It is a full color manga and I can't remebr the name of it.
Thanks