Lowkey this was really short, or should I say too short? Either way, it's a nice lil story of a married couple who got a dog, but as time went on, cracks started appearing in their married life, especially issues with having kids and whatnot. Overall, it's decent. I'd say that it felt pretty rushed despite it being a oneshot, definitely could have used like 10-15 more pages or sum, but I digress. It'll be great as a 20-30 chapter manga, where they start in the present(the oneshot), show snippets of their past(when they met and whatnot), their life after their dog die, and ending it with their kids or sum.
