Valkyrie Drive -Mermaid- Manga

Tokonome Mamori is transferred to "Mermaid"—an artificial quarantine island for people with superpowers. When Mamori is attacked, a newly transferred girl named Mirei saves her. The enemy doesn't stop, however, and the two are soon cornered. Just when they think all hope is lost, Mirei kisses Mamori, and Mamori turns into a sword. Mirei then wields the sword and launches a counterattack against their enemies.
Tokonome Mamori is transferred to "Mermaid"—an artificial quarantine island for people with superpowers. When Mamori is attacked, a newly transferred girl named Mirei saves her. The enemy doesn't stop, however, and the two are soon cornered. Just when they think all hope is lost, Mirei kisses Mamori, and Mamori turns into a sword. Mirei then wields the sword and launches a counterattack against their enemies.

Let's Play: Valkyrie Drive: Bhikkhuni - Part 15 [Rinka's Return]

Valkyrie Drive: Bhikkhuni for PC launches June 20 - Gematsu

Valkyrie Drive Bhikkhunism - MangaDex

Weaponised girls get turned on to transform in Valkyrie Drive: Bhikkhuni later this year - Neoseeker

Valkyrie Drive Siren -Break Out- Valkyrie Drive Siren Break Out Ch. 10 - Novel Cool - Best online light novel reading website

Valkyrie Drive: Bhikkhuni 'Mana Inagawa' gameplay - Gematsu

Valkyrie Drive Bhikkhuni Coming to the West

Steam Community :: Screenshot :: :3

Check out this plot-heavy Valkyrie Drive: Bhikkhuni trailer – Destructoid