Rea was born into the prestigious Sanka family, but her early life was far from happy. Her biological mother passed away shortly after childbirth, and she was subsequently raised by her emotionally abusive and controlling father, Dan’ichirō. Her stepmother, Aria Sanka, remained distant and cold. Rea was kept under constant surveillance, treated like a doll or a possession by her father, and denied normal social experiences.

Her life took a dramatic turn when she met Chihiro Furuya, a boy obsessed with zombies. After assisting him in his experiments to revive his pet cat using a resurrection potion, Rea later consumes the potion herself in a desperate suicide attempt to escape her miserable life. This results in her transformation into a zombie, forever altering the course of her existence.

Rea is a beautiful teenage girl with long black hair, pale skin, and striking violet eyes. Her typical attire before becoming a zombie consisted of elegant dresses, often chosen by her father to reinforce her image as a refined, upper-class daughter. After becoming undead, she often wears more casual clothes, particularly Chihiro’s oversized school uniform, symbolizing her new independence.

As a zombie, her complexion becomes even paler, and she occasionally exhibits subtle physical symptoms such as bruising or body stiffening especially when she is emotionally distressed or physically neglected.

Initially, Rea is soft-spoken, gentle, and emotionally fragile, shaped by years of emotional repression and control. Despite her calm exterior, she harbors a deep longing for freedom and self-identity, often fantasizing about living a normal life outside her father’s mansion.

After her transformation, Rea slowly becomes more assertive, independent, and confident, though she continues to struggle with her place in the world as a zombie. Her experiences with Chihiro and his family help her rediscover joy, connection, and a sense of belonging. While she has moments of emotional vulnerability, Rea is also capable of bravery and determination, especially when it comes to protecting the people she cares about.

• The Tragic Rebirth
  Rea’s story begins as a tale of desperation and escape. Trapped in a loveless home and overwhelmed by her father’s obsession, she consumes the resurrection potion hoping to end her suffering. Instead, her death at the bottom of a cliff leads to her reawakening as a zombie, giving her the second chance at life she never expected.

• Living at the Furuya Temple
  After her transformation, Rea begins living with Chihiro Furuya, hiding her undead status from society. She starts adapting to normal life, forming bonds with Chihiro’s eccentric family while grappling with the challenges of her undead condition, such as physical degeneration and the need for preservation techniques.

• Emotional Evolution and Conflict
  As the story progresses, Rea develops romantic feelings for Chihiro, even as she tries to understand her identity and purpose. Her father continues to pursue her, leading to a violent confrontation that ultimately frees Rea from his influence. Her struggle shifts toward survival and self-determination, especially as the effects of zombification evolve.