Fuse: Shoujo to Kemono no Rekkatan

Fuse are a hybrid creatures of humans and dogs. As there were rumors saying that they killed humans and ate their souls, the Shogun Government offered high bounty for hunting them. Hamaji is a young female huntress living in the rural part of Mutsu while her brother Dousetsu was living in Edo. The story began as Hamaji went to Edo in order to help her brother to earn some bounty. But in Edo, she met a mysterious young men being chased by others. His name is Shino... (Source: Wikipedia) Volume 2 contains the gaiden "Kemono no Michi" (獣の道).