Tessia Eralith is a deuteragonist of The Beginning After The End. She is the sole daughter of Alduin Eralith and Merial Eralith, former king and queen of the elven kingdom of Elenoir, and heiress to the throne. Tessia is the childhood friend and love interest of Arthur Leywin, who rescued her from bandits and began training with him under her grandfather Virion Eralith. After becoming the apprentice of Cynthia Goodsky, Tessia was appointed as Student Council President of Xyrus Academy. Following the attack on Xyrus Academy, Tessia joined the war against Alacrya.

Yamashiro Ren) is a major supporting character in Mato Seihei no Slave. Widely regarded as the most powerful member of the Anti-Demon Corps, Ren serves as Chief of the Corps's 10th Unit, and is the current Supreme Commander of the entire service branch. Subsequently, she was designated as the next Minister of Defence with the Prime Minister's support & the outgoing Minister's recommendation.