Watch Regalia: The Three Sacred Stars full episodes online English Sub.
Synopsis: Sisters Yui and Rena live a peaceful life in the kingdom of Enastoria, but they become involved in a vortex of destiny when a giant robot attacks Enastoria.
Language: English Sub
Aired: Jul 7, 2016 to ?
Genres: Action, Mecha, Sci-Fi
Sources: Myanimelist, Wikipedia