Ore no Koigataki ga Inu deshite

Ryo, a college boy who dislikes dogs, is excited to move in with Harumi, his older girlfriend. However, when he steps into her house, he finds that Harumi's dog, Kotetsu, is there, too! What's more, Kotetsu will be fighting Ryo to be Harumi's real "boyfriend"! This is a cross-species, love triangle, cohabitation comedy!