There are aberrants, lurking unseen in the darkness.
Then there are those who oppose them: the Leaders, disposable "first penguins" who are forced to protect humanity. Kino and Azu, two such Leaders who don't even know their own origins, set out again on another mission where death lurks around every corner, dreaming of the day they can earn their freedom.

A hunting-cryptids story of two girls burdened by fate!