The TLDR of it is basically playing off of the trope of “a wolf in sheep’s clothing”, except the wolf isn’t really in sheep’s clothing–it’s just befriending one. Will their friendship work out, or will the Lamb suffer the consequences of trusting a wolf in the world of sheep?
Arashi No Yoru Ni is originally illustrated by Hiroshi Abe and authored by Yuichi Kimura. The image attached is a sample artwork promotional poster translated from the Japanese Cover image, and I am attaching it for educational purposes.