As revealed in Chapter 28, she is actually the original Kiana Kaslana, daughter of Cecilia Schariac and Siegfried Kaslana. She was thought to have died during a failed attempt by Siegfried and K-423 to rescue her from captivity under Otto Apocalypse, but she survived to be recaptured and have her memory altered to forget her true identity. The treatment that saved her life also changed her hair color.
- Valkyrie Gloria - Quantum/Fire. Default outfit that resembles a black military uniform.
- Bright Knight: Excelsis - Mecha/Physical. Armored dress with a shield counter that can also summon two Stand-like beings called King and Queen.
- Dea Anchora - Biologic/Fire. Greco-Roman-styled design using the power of the bubble universe within her.
- Palatinus Equinox - Imaginary/Physical. Initially previewed in Chapter 28 and later released in the main game as of 5.5. Fully awakening the power of both her paternal Kaslana stigmata and maternal Schariac blood restores some of the original white hair and grants Bianka a new form that can switch between horseback and dismounted combat.
The following tags implicate this tag: bianka_durandal_ataegina_(bright_knight:_excelsis), bianka_durandal_ataegina_(dea_anchora), bianka_durandal_ataegina_(palatinus_equinox), and bianka_durandal_ataegina_(valkyrie_gloria) (learn more).