-minor spoiler warning-
If this Anime was re-made, in 2021 I bet it would have great potential.
I love how it slowly tells different character's stories by what they brake in the pet contract due to their shortcomings/imperfections.(for example the first episode, the mother has troubles being assertive/saying no and ended up breaking the 3rd rule of the contract). Count D is a really mysterious, structured character that I wish they explored into more, he really MADE the anime good- and I also wish the detective was as likable. There would be times I would get pretty annoyed by him.
I don't want to judge the animation too much, since it is from the 90s, but there was some awkward moments like eye contact and gasps lasting a little bit too long than they should.
Overall, a good, short anime I highly recommend.