Inu ni Nattara Suki na Hito ni Hirowareta. (Unc.)
They say every dog has his day. That's especially true for our protagonist, who was just turned into a dog and now lives every day under the care of his crush, Inukai-san! She happily dotes on her new companion, and while he wants to return to human form someday, there's something wonderful about being cared for by the person he loves.