Originally employed as a maid in the Sanka household, Aria caught the attention of Dan’ichirō Sanka, who later married her after the passing of Rea’s biological mother. Despite her change in status, Aria never truly found peace or fulfillment within the elite confines of the family. Her marriage to Dan’ichirō was distant and formal, built more on social expectation than love.

Aria’s resentment and bitterness grew over time, particularly as Dan’ichirō lavished attention on Rea, whom Aria viewed as a symbol of everything she lacked beauty, youth, and affection from her husband. As a result, Aria began to treat Rea with disdain and emotional coldness, acting more like a resentful rival than a parental figure.

Aria is a refined and mature woman, typically depicted with wavy dark hair, sharp eyes, and a sophisticated sense of fashion, often wearing elegant dresses or traditional garments reflecting the Sanka family’s wealth. Her expressions often convey disapproval, frustration, or scorn, especially when interacting with Rea or addressing her perceived failings.

Despite her beauty and elegance, there’s an ever-present edge of bitterness in her features, mirroring the dissatisfaction she carries within.

Aria is portrayed as cold, calculating, and deeply bitter. She maintains a stoic and composed exterior but harbors intense jealousy and insecurity, particularly regarding Rea and her place in the family. Her strained marriage, lack of affection from Dan’ichirō, and the pressures of fitting into the aristocratic Sanka lineage have left her emotionally isolated.

Although she rarely expresses vulnerability, Aria is ultimately a tragic figure, consumed by resentment over a life she never chose but felt forced to uphold. Her treatment of Rea stems more from her own feelings of powerlessness and rejection than from malice, making her a complex and emotionally layered character.

• Stepmother and Emotional Conflict
  Aria’s main role is as Rea’s emotionally distant stepmother. She often criticizes Rea harshly and accuses her of being a source of dishonor or distraction to the Sanka family. Her treatment exacerbates Rea’s depression and desire to escape her home life, contributing indirectly to Rea’s fatal decision to ingest the resurrection potion.

• Reflection of Dysfunction
  Aria’s presence is key to understanding the emotional dysfunction within the Sanka family. Her own unhappiness is juxtaposed with Rea’s suffering, showing how different individuals cope with neglect, control, and status. Though she initially appears as a villainous figure, the story slowly reveals her inner sadness and longing for agency.