If his memories weren't deceiving him, Aisha Hael was a 20-year-old woman with mana purity of at least 90%. It was said that she had the platinum occupation called Holy Knight which enhanced all attacks with a holy light, but nobody knew for sure.
As such, she was at the top of humanity's Expert stages within the Basic Primordial dimensions.
The Valkyries were her personal special cavalry unit, which Uncle Lars had given to her in order to take charge of perilous situations within Basic dimensions.
Shane knew that Aisha was Lars' disciple but he had only met her once at a military event.
Apparently, her parents had been good friends of his Uncle. Thus he had raised her as one of his own after her parents had lost their lives in a beast tide in the intermediate dimensions.
Aisha's strength was unrivaled, her leadership style exceptional while her determination was nothing to joke about.
Creation is hard, cheer me up!