As long as it's well edited, and has character development, I'll read it. Dumb antagonists are the only thing I dislike. If the MC is squeaking through his enemies, I'd rather them be at least as smart as him, so that the fights have a result that isn't 100% guaranteed at the start.
Would you read a story if the MC was a mouse?
An0n1m0u5e Have you read RE: Hamster?
I would if the story was an adventure type, but aside from that as long as it's an interesting story or plot with character development I'll read it.
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An0n1m0u5e I would recommend you to read 'Everybody Loves Large Chests' first to see how other authors handle a monster mc and still keep it interesting.
Firstly, you shouldn't think like a human when writing your character. Your characters interests should align with it's nature. That doesn't mean it can't have it's own interests outside it's nature tho. Also, monsters or animals don't use human morals and values. It can learn what they are, but that still doesn't mean an animal would use them if it doesn't align with it's interests. Morals are just unnecessary constraints. So your character shouldn't be like a human turned animal if you wanna keep it interesting, it should be an animal that slowly gained sentience while still keeping it's instincts. Ofc, as your character grows it can learn from humans and even pretend, but that still doesn't mean it would want to follow their morals and values if it's constricting it's nature. Also some things that your character likes doesn't have to make sense from a humans point of view. For example, the mc of Everybody Loves Large Chests defines things it likes as 'tasty' while things it doesn't like as 'not tasty'. Shiny things are tasty, learning useful magic is also tasty, eating humans is really tasty! Getting stabbed is not tasty at all!!!
Warning, Everybody Loves Large Chests contains:
Gore, Profanity, Sexual Content(quite extreme)
Mc is not evil, but of chaotic allignment. After all, it is a monster. Also evil and good depends on the point of view of the one doing the judging. There is nothing wrong for a monster to massacre a village and eat everything to fill it's belly.
I love Pinky and the Brain. Make the mc a lab mouse that plan for world domination for it's vengeance. Unfortunately, the world is evolving and the mc need to get it's brethren not to fall behind the evolution. The antagonist could be a cute cat who plan for it's own world domination with it's owner unknowingly ruin the cat's plan, every single time.
An0n1m0u5e
I will read if mc is a mouse.
But we also must have funny antagonist. How about a cat?
And the novel title is Tom & Jerry.
Or jerry who get cheat : all mc cheat. Like the strongest system, ai chip, shadow hack.
Daoist2017 How to Break Into a Male God’s Computer - MC becomes a PC, keyboard included. Not Qidian, but can find on NovelUpdates.
Seeing as how Ive already read a similar story about a mouse, yes, I would read that up very fast
lmfao how would mc be a mouse? its not a living thing OP is pretty dumb how can an MC be a mouse?
is he like a logitech g502 with RBG LED? or some mouse for normies?
An0n1m0u5e yeah, have you played Ghost of a Tale?
I'll read anything as long as it is interesting. 
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One of my personal favorite books from when I was a child is called Redwall. Which had the MC as a Mouse in a Medieval setting, that was released in the 80's. Definitely a good read if that is the story you are wanting to go with.
I would definitely give it a try, even more so if you actually do not go straight down the cliché path of "human transformation". That would actually be a refreshing read, seeing how stale and monotonous novels have started to become. Well, most of them.
Anyway, if you'll ever start this project of yours, stay assured you'll atleast have my full support in this.
I woud'nt mind reading a book about a mouse i think a mouse that evolves is cool i've read books about foxes snakes cats and there not that bad
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An0n1m0u5e Yes I am already reading one with a human reincarnated into a Black Cat. I think it's "Strange Life of a Cat" and it's on here.
I'd read it, just depends on the amount of action and how merciless our mouse MC is.