Teitania da Montewells serves the religious organization Allegium within the Armored Trooper VOTOMS OVA continuity. As a member of the Allegium faction featured in *Shining Heresy*, she participates in the conflict ignited by Chirico Cuvie's pursuit of Fyana following his cryosleep disturbance. Her presence continues in *Alone Again*, appearing on the neutral planet Gluphae.

She operates the unique Eldospine (Teitania Custom) mecha, a customized unit distinguishing her from standard Allegium forces and featured in *Alone Again*. Her affiliation places her within Allegium's power structure, an influential sect antagonistic towards Chirico Cuvie.