First Penguin Requiem

[Supernatural phenomena] lurk unnoticed in the abyss. And there are those who must confront them. —They are known as the "Leaders." These are the unfortunate first penguins forced to protect humanity. Kino and Az, two girls in the Leaders who don't even know their own origins, dream of one day being free, and today they head out on missions where they are constantly on the brink of death. This is the story of girls burdened by destiny as they search for supernatural phenomena!

Source: Kurage Bunch