The Light Screen's footage had finished showing Durandal's lost past—the life once lived by a girl named Kiana Kaslana.
After that, Kiana Kaslana became Bianka Ataegina.
Then, under Otto's arrangements, Bianka entered an orphanage under Destiny. Influenced by Valkyries of outstanding character, she resolved to become a Valkyrie herself and protect the world.
Otto was quite satisfied with this, because she knew full well just how great Bianka's potential was.
So, to turn Bianka into an outstanding Valkyrie, Otto directly sent her into a bubble world within the Sea of Quanta, with Rita—then an A-rank Valkyrie—accompanying her for training.
Bianka then went through many things in that bubble world. She obtained the Holy Sword Durandal and, borrowing its power, defeated the great enemy within the bubble world.
In the end, the Holy Sword Durandal was damaged. To commemorate it, and driven by her will to protect the world, Bianka took Durandal as part of her name. Then, in order to protect that bubble world that was about to perish, she sealed it within her own body, nurturing and guarding it with herself. Thus, that bubble world—which should have vanished long ago—continued to exist.
From then on, Bianka Ataegina became Bianka Durandal Ataegina.
The memories of the past had returned. Within this stigmata space, Durandal once again saw her own past. Whether she had forgotten it or remembered it, everything surfaced one by one.
To Durandal, it was as though she had lived through an entire life once more, leaving her emotions deeply complicated.
Yet the girl's strongest will had never wavered. No matter how many hardships and obstacles lay ahead, they could not shake her resolve.
Then, the Kaslana Stigmata Will unleashed countless monsters upon Durandal and bluntly stated that this was a trial—something many Kaslanas had undergone before.
Only