Kemono wa Oku made Aisaretai

Haku grew up in the slums, a.k.a. the "Management Zone." That's where all the mutts like him live. Now that his father has died and he's being targeted, Haku manages to escape. An accident happens and Haku is saved by a human, Eiichi Mibu. "Haku, from now on, you're my pet." How will this work out when Haku's heat starts?

(Source: BL Tsundoku Scans)