Henkei Shoujo

The fourth season of Date A Live. Despite the numerous challenges he has overcome so far, Shidou Itsuka's mission with Ratatoskr is far from over. In a departure from his daily routine, Shidou encounters a starving woman lying on the street and ends up helping her. After the two arrive at her apartment, the woman introduces herself as Nia Honjou—a popular manga artist working under a pen name. However, cutting straight to the chase, Nia reveals that she is also a Spirit and is aware of Shidou's

In 1945, Yoshika Miyafuji, who lost her witch powers during the Strike Witches' last assignment, has been studying to become a doctor. Shizuka Hattori, one of her cadets in the Imperial Fuso Navy, then arrives to deliver a message: Yoshika is to be transferred for study abroad in Europe. When their enemy reappears more powerful than ever, the Strike Witches must form up once again. But can they do it without Yoshika Miyafuji? (Source: Kadokawa, Crunchyroll)

Unaired episodes bundled with the 5th, 6th, 8th, 9th, 12th and 13th limited-edition volume of the manga.

Episodes 13 and 14 of To LOVE-Ru Darkness 2nd.

OVAs included with volumes 15, 16 and 17 of the manga.