2. UN Investigation Agency EXCEEDS / Diaboli Slayers

Nanoha & Fate recruit Shiina to EXCEEDS, and explain the Diaboli. / A mysterious group of girls slay Diaboli.

3. Kuze Shiina & Yorumi Towa

On her day off from EXCEEDS, Shiina encounters Towa attempting to rescue a cat & the two become fast friends.

4. Yorumi Towa Origin

Shiina is killing progenitors while Towa prepares to make her move, reflecting on the reason for her actions.

5. Chance Encounter

EXCEEDS & the Diaboli Slayers run into each other as both target the facility abusing Progenitor Three & Four.

6. Kuragi Eiji and Shinomiya Mana / Sunlight

Eiji and Mana discuss the Diaboli Slayers and take countermeasures. Shiina and Towa enjoy a day together.

7. Jurisdiction #4's Subway: Running Extermination Battle

Parasitic invaders are unleashed on a public park. As both groups work to stop it Towa becomes a wanted woman.

8. Yorumi Towa Descent

Shiina fails to persuade Towa, and Towa turns herself in to get closer to Shinomiya.

9. EXCEEDS

EXCEEDS interviews the Diaboli Slayers and mobilizes its forces while Towa fights Shinomiya Mana.

10. South Pole Underground Research Lab: Search and Destroy Mission

EXCEEDS raids Shinomiya's lab in the south pole to rescue Towa and exterminate Progenitor Zero.

11. The Diaboli, Shinomiya Mana

Shiina rescues Towa and faces off against Mana while Nanoha and Fate handle progenitor zero.

12. The Flame Connecting Me to You

Towa and Shiina work together to end the real Progenitor Zero and bring peace back to their world.