Ayame Sakuya is a main character from the original anime Momentary Lily. She is a teenage girl with black hair tied into a ponytail that reaches her chest, and she has green eyes. Her appearance is distinguished by her glasses, which she wears along with a school uniform, a coat, a neckerchief, and fingerless gloves. Her calm and composed demeanor often gives her the air of a student council president, although she has never actually held that position.

Within her group, Ayame serves as a key stabilizing force. She is level-headed and thoughtful, acting as the voice of reason who reins in her teammates when their enthusiasm causes situations to become complicated. Despite this outward calm, she carries complex and profound emotions within her. Her personality is notably shaped by her love for reading light novels filled with chunibyou, or middle-school second-year syndrome, themes. This hobby directly influences her actions and speech, as she is responsible for naming her group Wild Hunt and their weapon Andvari, and her characteristic catchphrase is Guilty or Condemnation, which she often utters during combat.

Ayame has a long-standing friendship with her teammate Sazanka Yoshino, whom she has known since elementary school. Sazanka affectionately calls her president as a habit, referencing her natural leadership qualities. Her role within the story evolves significantly following the death of the group's original leader, Yuri Kawazu. In the wake of this loss, Ayame steps up to take on the leadership position, determined to carry on Yuri's will and guide the team forward.

In combat, Ayame wields a powerful weapon named Andvari, which she also named. Andvari is a long sword referred to as the Blazing Blade Surtr. True to its name, this weapon generates intense heat, granting it the formidable ability to burn through and slice the armor of their enemies, the Wild Hunt.