Should I delete intro chapters and start over without the Hunter's?
I have read all the available chapters.
Well, you could do that if these specific characters aren't that important for the future chapters. It is kinda strange that you put a lot of attention to them to the point that the protagonist is sidelined only to seemingly kill them. I don't think they all died given the fact that you spend too much attention to them. Still, they might still come to use so you might want to keep them.
There are also kind of contrived things with them. Of course the very convenient Deus Ex Machina moment where they just so happen to be there at the right time to save Dante. They also kill werewolves but they let Dante live for some reason. No explanation really. Their existence really feels more like plot convenience.
Still, the Hunters aren't really that bad. My issues with them aren't all that big. It is more of the head hopping that makes their chapters kinda difficult to follow and feel weak.
After reading all the chapters though, the Hunter's aren't really much of a problem. The development of the narrative is a bigger problem. You aren't utilizing your concept well. The curse is supposed to be a . . . well . . . a curse, but so far Dante isn't having any issue with it. Another concept that is interesting is the idea that he will join the Hunter's Association but obviously, it would not play this early (I think, you can take this off your synopsis, maybe only indicate the pressence of the Hunters but not tell that he will infiltrate them). Nor do Dante do anything interesting with abilities that comes with it. The most is that he used his tacking abilities to track which ends up to be just a plot convenience. Talking of plot convenience.
There are so many conveniences. He accidentally found a nearly dead werewolf that he cannibalize which improves his overall physical traits . . . without putting any effort. He found the witch's hut where he discovers a whole lot of helpful things to help him . . . again without putting much effort.
Also, there is not much tension since there are no stakes involved. I mean, the curse doesn't really act like a curse. Things conveniently fall into Dante's lap. It is honestly becoming boring when everything is just delivered in a silver platter to your protagonist.
I think you need to refine your story. Revise it, so to speak. Make the plot more streamlined and impact.
For the Hunters, I suggest that you should not make them help Dante directly. Don't make them go out to save him, cure his wounds and all. I think it would be better if their assistance is incidental than deliberate. Maybe the hunters are hunting these werewolves which gives Dante an opportunity to escape with his life. This would help keep the Hunters at minimum profile and keep the attention on Dante.
After that, it is the best time to show what makes this cruse a curse. What is bad about it. You have to do this or there would be no tension in your story because Dante would have nothing at stake. You don't have to spell it out like what you did so far (having the hunters explain it to Dante). It is enough to know that something is wrong. You could provide more details later, not to mention it makes the curse mysterious and make your readings be engage about learning more about the curse.
And there is the plot conveniences. I don't really know how to tackle these things. You obviously have plans for these, why he get these things, but I don't know what. You also seems to be excited about these things so you really want these things in.
This might be some early-installment-weirdness because you are still finding your rhythm (well it seems to be your first serial novel). You might just have so many ideas that you want to cram in. Maybe you will finally get things on track in the later installments.