Sion "Top Sword" Zail

About

Sion Zail is the heroine of Another Episode-2 A Village Where You Are.
She is an imperfect, sickly Homunculus and the daughter of Princess Eve.
Brought up in isolation due to her scorned heritage, she first found care and warmth in Rhea Zail, who was assigned to her.
Under the guidance of Rhea and Clint, she quickly mastered the sword, even perfecting them, thanks to her superior combat-type bloodline. Her superior abilities persuaded the ruling Zail Family to use her as a weapon in the wars against the AGs.

(Source: Knight Run Wiki)