OVA
Description
Kanon Kanase, a central figure throughout the Strike the Blood series, is the adoptive daughter of Kensei Kanase, formerly a court sorcerous engineer for the Aldegyr Kingdom. Her biological origins trace back to the grandfather of La Folia Rihavein, making her the illegitimate half-sister of Polifonia Rihavein and aunt to La Folia Rihavein. Despite this royal bloodline, she possesses no claim to the throne.

Growing up in a monastery, Kanon became the sole survivor of an attack by Kou Amatsuka. This event led to her adoption by Kensei. He subjected her to forbidden alchemical experiments, implanting Angel Circuits to transform her into an Artificial Angel (Angel Faux). Kensei claimed his motive was elevating her to a near-divine state to ensure survival against threats like the Fourth Primogenitor, but his methods violated international treaties through illegal human experimentation.

Physically, Kanon has shoulder-length white hair, typically braided with a violet ribbon on the left side, bangs covering her eyebrows, and clear blue eyes. She stands 158 cm tall with measurements of bust-79, waist-56, and hip-80. She wears the standard Saikai Academy uniform with violet undergarments.

Her personality embodies profound kindness and gentleness, earning her the moniker "middle-school saint" among Saikai Academy peers, largely due to her compassionate care for stray cats. She forms close friendships with classmates Yukina Himeragi and Nagisa Akatsuki. Kanon exhibits deep trust in Kojou Akatsuki, whom she affectionately calls "Onii-san," acknowledging his consistent efforts to protect her and others.

Her abilities derive from the implanted Angel Circuits:
- **First Form**: Grants white feathered wings enabling flight and defensive use, alongside enhanced speed, strength, durability, and senses.
- **Second Form**: Manifests additional wing sets with red eyes firing yellow energy beams capable of harming Primogenitors. This form confers non-corporeal physiology, rendering her immune to physical and magical attacks by existing in a separate dimension. She can generate blizzards powerful enough to freeze entire islands.
- **Third Form**: Triggers a berserk state with unknown capabilities, as her powers were sealed by Yukina Himeragi and subdued by Kojou Akatsuki before full manifestation.

Following the Angel Faux incident, her abilities were sealed, and she entered the guardianship of Natsuki Minamiya. The Aldegyr Kingdom monitors her safety via escorts and surveillance satellites due to her royal connections. Her relationship with Kensei remains complex; he demonstrates protectiveness, particularly regarding her interactions with Kojou.

Her story includes assisting Kojou in finding homes for stray cats and navigating her dual identity as both an ordinary student and a figure of political interest. Future developments confirm her eventual marriage to Kojou as part of his multi-partner union.