Episode Title:
The Beginning of the Sanctuary and the Beginning of the End.
Episode Description:
In the past, Roswaal is saved during his "magical release period" by Echidna, becoming her pupil and falling in love with her. He develops a close with her as she, Beatrice, and Ryuzu look after the Sanctuary. One day, the "Devil of Melancholy", Hector, shows up, leaving Roswaal worried about what to do since the Sanctuary's barrier is still incomplete. Ryuzu, as thanks to Echidna for saving her, volunteers to act as the core to erect the barrier at the cost of her own life...
