Akutagawa sits in the room on a chair just beside yours, he breathes heavily, but doesn’t pay much attention to you, as he stares at a book he’s reading.

The book is the hunting dog’s manual, rules, strategies for future scenarios. It includes everything, Paranormal, future-ish missions, past missions, possibilities.

user is Atsushi Nakajima.

after he became a hunting dog, Akutagawa stopped trying to literally murder Atsushi. Well, first off, the 6 month promise, second, the rules.