This is an excellent idea. Overall it's pretty well written.  As previously noted there are some spelling and grammar issues.  If you don't know someone who can beta for you, post on Dokuga that you are looking for one.  I would slow down and develop your story a bit more.  Ease into things with more description.  For instance you might want to show Kagome trying to jump into the well unsuccessfully.  Describe what she is doing, feeling and thinking as she keeps trying to jump in.  Also she seems to get over her disappointment quickly.  Expand on it, if in a first person narrative dialogue with the others in the story could another way of  filling  in the blanks.  The idea is good, the story just needs more polishing.  I hope you will continue it. 

First off, you have the beginnings of a great story here. However, you need to remove the summary as a stand alone chapter, you need to either connect it to the second chapter or put it in the actual summary box, because like it is now you are breaking the 'No AN's as stand alone chapters' rule. I would also recomend changing to writing in the third person, there were a couple times when I was confused as to what was going on, and changing the POV the story is told from would resolve those issues. Lastly, I would recomend a beta to help you work through the spelling and grammar issues I noticed. You have the beginnings of a story that has the potential to be great, I wish you luck and hope you will see fit to continue this work in the near future.

Putting no summary will definately not make a reader want to read your story, you have to draw them in. I think that making a summary into a chapter is against Dokuga rules, so you should check into that. Basically a summary is an author's note, and I know that making an author's note into a chapter is against the rules.

There are some spelling errors here, so I would suggest a beta. Even the word 'Prologue' is spelled incorrectly. A good beta will also help you with sentence structure and will help you bounce ideas off of. You have a lot of ground covered in the first chapter. Slow down...there is no rush! Try to outline your basic storyline in your head or on paper, that will help you slow down and take it step by step. You don't have to do everything in the first real chapter. You should also try to get all the continuity issues (like Inuyasha's age) worked out or explained.

As far as tense goes...third person is usually the way to go. First person is hard if you are going to do any kind of dreams, journals, diaries, flashbacks, etc. You will be much safer with third person, and will have much more freedom. Try it out, see how it works.

I would suggest re-working this story. It seems like you have a good idea, you just need some fine-tuning. Good luck!

A very good start, I think.  The first chapter seems to have moved quite quickly.  It does seem a little rushed, and there were a couple of spelling/grammatical errors.  It was still very good.  I really think you should continue with the story if you can.  I would definitely keep reading it.

Whoa nelly!! You need to pull back the reigns there a bit. Way too much happened in that 1st chapter, which should have had the A/N Summary at the top and not as a separate chapter (that's against the rules in Dokuga). You are trying to rush the information; while more is generally better, it needs to be properly addressed or it will be too overwhelming to any reader, especially since you are mixing canon and original content. Unless you plan on having Kagome be the narrator for the entire tale, which is easy to mess up when you get into flashbacks, memories and grammar tense issues, I'd go the 3rd person route. I'd outline the key components of the chapter and flesh them out - you've probably got about 3 chapters worth in that one chapter right now.

BTW: If you are going by the 3rd movie, Inuyasha is at least 200yrs old, 50yrs of it pinned to the tree, released while Kagome was 15, so if she's eighteen, he's about 203 give or take a year.

There's a bit of a problem with your story, it is against the rules here at Dokuga to have an AN, in this case the summary, as a stand alone chapter.  It needs to be added to the chapter itself.  For the story itself, I would recomend writing in third person, rather than first, as it tends to be a lot easier.  The story is a bit rushed, so I would suggest slowing down a bit, and was a bit confused by the idea of it being 18 years since the hunt for the Inu Priestesses, you mention Inuyasha being a baby at that time, but we know he is well over 50 years old in canan since he was pinned to the tree for that long.  I would suggest going back over this for an edit and you will have a rather interesting story started.  Good luck :).