Bles, Selvaria

セルベリア・ブレス

Selvaria Bles is a proud, noble, yet aloof woman who serves Maximilian with unwavering loyalty as a member of the Drei Stern. The blood of the legendary Valkyria runs through her veins, endowing her with superhuman combat abilities when she wields a special ragnite spear and shield.
As a child, she was kept at an Imperial research facility and used as a test subject in their experiments, until Maximilian rescued her. The anime reveals that Maximilian named Selvaria after a blue flower of the same name.