If you liked the Early Reins anime, the Anime-Planet community thinks you'd like:
In the ancient past, a great civilization known as the Ords flourished on the Earth, worshipping light and the sun. In the present, Professor Rayna Kizuki is studying the Ords and possesses a mirror rumored to have the power to unlock the powers of the ancient people. Keeping track of the mirror, however, is a difficult task with twins Mai and Mami Tachibana and power hungry Rieg on her tail, who want the mirror for themselves! The mysterious secrets of the ancient ruins is about to be uncovered, but is the world ready for this ultimate power?