Semelparous vol. 3 (Yuri manga)

Semelparous Manga Volume 3 features story and art by Jun Ogino.

In order to break the cold chains of fate, Youko devises a plan to breach the Upper Wall and exterminate the enemy kaiju once and for all. To accomplish this, she’ll need Yorino, the last living pureblood Mure. Now joined in body and soul, these two young women vow to carve out a future together once their task is complete. But there are traitors among the Bulwarks!