Regalia: The Three Sacred Stars

Regalia: The Three Sacred Stars (レガリア The Three Sacred Stars, Regaria Za Surī Seikuriddo Sutāzu) is a Japanese anime series produced by Actas, directed by Susumu Tosaka and written by Keigo Koyanagi, featuring character designs by Kimitake Nishio based on QP:flapper's original designs. It premiered on July 7, 2016. Infinite and Bandai Namco Entertainment are part of the production committee.

Plot
12 years ago, in the country of Rimgarde, a big incident left an unsolved mystery that has begun to fade from people's memories. Time passes, and sisters, Yuinshiel and Rena Asteria live a peaceful life in the Enastoria Empire, but they become involved in a vortex of destiny when a giant robot attacks Enastoria.