Series by 佐藤健太郎

Kii Kogami, an ordinary high school student, experiences a typical day until a mysterious magical girl invades his school, unleashing deadly powers that kill his classmates. His childhood friend Tsukune Fukumoto survives the initial massacre, and together they witness the horrifying transformation of the dead into new magical girls who attack the living. Desperate to escape, Kii and Tsukune join other survivors, navigating a school turned into a blood-soaked battleground. The city outside reveals even more magical girls wreaking havoc, plunging their world into chaos. Their fight for survival begins, driven by the need to uncover the truth behind the magical girls’ onslaught.

Aya Asagiri's life is a nightmare—bullied at school and tormented at home, she feels trapped in despair. But everything changes when she stumbles upon a mysterious website called the "Magical Girl Site," granting her magical powers and a chance to fight back. However, this newfound strength comes at a steep cost, pulling Aya into a dark and dangerous world alongside other magical girls, each with their own burdens. As they confront sinister forces and unravel the secrets behind the site, Aya must decide if the price of power is worth paying.