Short review, in two words: Extremely cute!
Longer review: Okay, so the story is about animal spirits, bakemono, that live alongside the human realm, and are typically shunned by their families at a young age, and often abandoned. Senzou, a black kitsune, was quite infamous, and was punished with a 300 year sleep by the sun goddess, and now has been awakened for the next stage of his punishment - having to take care of a young tanuki, who he names Manpachi. He is to raise him to be 'a servant of the gods', which means taking care of problems that arise in their world. Their overseers are from the Wolf pack - which includes wolves as well as spirit dogs (there are intros to these characters, and their categories sprinkled throughout), and one is Tachibana, who also happens to be my favorite character in this series!
The dynamic of a grumpy ex-evil fox taking care of a cute tanuki kid is just too adorable. He complains about having a kid as a tag-along but his actions show how much he cares for the kid, and softens as the story goes on. And they both are living with a kitsune who loves to cook (she changes to human form for that). Still, Senzou finds the concept of family false, and is quite aggressive when it comes up. He also has a lot of resentment against the gods, and the bakemono who serve them. Manpachi, meanwhile, is an adorable baby, who clings to Senzou, and loves him. They both also have an unexpected bond, in that Senzou's ability to use magic is tied to Manpachi, who himself is a powerful user.
In this volume, they take on their first case - helping a zashiki-warashi recover something lost. Later, as Manpachi is missing his family and after getting scolded by Senzou for remembering the family that abandoned him, comes across an old acquaintance of Senzou's. While it also has themes of child abandonment, and death, as well as the sad sides of the relationships between ayakashi and humans, the tone of the book tends more towards humor. Tachibana especially is a delight! The character design is also excellent, with cute animal designs and cute anthropomorphic designs as well. Overall, it is interesting, cute and I can't wait for more!