12 years ago, in the country of Rimguard, a big incident left an unsolved mystery that has begun to fade from people's memories. Time passes, and sisters Yui and Rena are living peacefully in the Enastria Empire. However, one day, a large mecha attacks Enastria. This day marks the turning point when the two girls get caught in the vortex of fate.
Episode 1
Rena's date with Yui is interrupted by a mysterious person from her past.
Episode 2
As Empress, Yui is forced to choose who she will protect. More strangers appear seeking the Regalia.
Episode 3
Alecto is confronted by a new potential threat. Yui visits the festival, while Rena prepares a surprise for Yui.
Episode 4
Yui and Rena's relationship is tested when they encounter a visitor from Rimgarde.
Episode 5
Yui has devised a plan to deal with the threat from Abel, and along with Rena, they must find the strength to see it through.
Episode 6
Yui, Rena, Tia, and Sara are summoned to another country by an unknown Regalia. Meanwhile, Johann grows restless.
Episode 7
The girls find themselves wandering the ruins of Rimgarde, when they suddenly come across Kei.
Episode 8
Johann forces a showdown while Tia and Rena leave their Regalia to search for Kei.
Episode 9
Ingrid takes up temporary residence with Yui, giving them a chance to talk about the time Ingrid met Yui's mother.
Episode 10
Tia and Sara discover someone from their past amongst Johann's dolls. Later, Yui proposes a bold plan of action!
Episode 11
Rena and Yui are reunited, while Sara, Tia, Kei, and Ingrid fight off Johann's Regalia Gear.
Episode 12
Ingrid, Kei, Tia, and Sara continue to fight, managing to free Noa. Will Yui and Rena return in time?
Episode 13
Yui and all of her friends face off with Johann for a decisive battle.
