In the anime before, they made Nadeko's oddities seem easy to exorcist. But at season 2, Nadeko's oddities is the more serious than Araragi thought before, equal to Hanekawa's. In this manga, they truly show how troublesome this snake oddities is.
Well...If I remember correctly, in the anime also implied the snake return to the curser, but they didn't take any farther measure for it.
Guest illustrator is Mai Yoneyama. She worked as an animation director for Black Rock Shooter, Sword Art Online, and Kill la Kill. She also was the character designer and animation director of Kiznaiver.