Valkyrie Drive: Mermaid

Across a series of five isolated islands, a mysterious new virus has begun to infect young women. Its symptoms manifest in two distinct ways: some victims find themselves able to temporarily transform into powerful, sentient weapons, while others gain the ability to wield these weapons with uncanny skill. These "Liberators" and "Extars" are then drawn into a secret, high-stakes conflict, forced to hone their abilities in fierce combat against one another. When the naive Mamori is afflicted and washes ashore on one of these enigmatic islands, she finds herself suddenly thrust into this dangerous new reality. Her only hope lies with Mirei, a seasoned Extar who recognizes Mamori's potential and takes her under her wing. Together, they must navigate a world where trust is a luxury and survival depends on the strength of their bond, both in and out of battle.

✦ AI-drafted summary