Having a cute little dog is probably something that would be fun for anyone. But if it's actually a huge wolf, said to be the King of all wolfs, that could be a problem. If it weren't already tamed by a young lady.
Story: A young man dies, and asks to be a pampered little pup in his next life. But after just a month he is far too big and scary looking. And so the story about a lazy wolf begins.
As of volume 1, there has been no real goal to the plot. The wolf simply handles everyday problems in a way a loyal pet
would act. It's interesting and entertaining to read about these small everyday things, but hopefully there will be a main goal to go after in the near future.
Art: The art is good, no doubt about that. But it does lack the amount of detail and consistency that you would see from experienced professionals. The character designs are not perfect, but they do look beautiful enough. Biggest problems are the illustrations of the white wolf. Though, if you think of it as a "canine monster" rather than wolf, it does make sense to be a bit different.
Characters: Routa the Wolf, "My pet name is the same one I had in my previous life, it's a crazy coincidence." was indeed given the same name in both his human and wolf life. Other than that, this character is a solid protagonist. He can't speak, but his human friends know what his barks mean. Like Pokémon owners understanding their pokémon. But the whole point of wanting to be a lazy dog and relax all day might become boring if it stays that way for too long.
Mary the dog owner, is very kind and loves her "dog" more than anything. Routa does indeed love her too so the interactions between these two are really cute and easy going. But she has not yet become a big part of the story.
Other Humans are usually very solid, well written characters with likable personalities. But animals are in fact a big part of the story. Growl, Woof (animal's have their actual words in parenthesis) You shouldn't buy this book if you don't like animals.
As it stand after the first volume, this is a comedy and should not be taken seriously. It's the same type as "In Another World With A Smartphone" or "Reborn as a Vending Machine". Enjoy it without expecting too much development.
+ Pet-like monologs
+ Good Owner / Pet relationship
+ Plenty of likable supporting characters
- Lack of Goal might become a problem
The idea of this novel does use the mainstream "revival / summoned to another world" plot, but while reading the novels it's clear the author is skilled enough to make it original and fresh without exaggerating.