It's been a while so I can't really remember exact details of the story or if it was complete (I don't believe it was). I know it was several chapters long and at one point it was on a single spark.
Kagome, Sango, and Rin attend the same college; Sango and Rin decide to attend tryouts for a local rock band, Inuyasha being the dummer, Sesshomaru being lead guitarist, vocalist, and song writer; Koga and Miroku are in the mix somewhere as well. Kagome decides to go to support them, not intending to audition but ends up getting forced into it anyway, winning the spot as lead vocalist.
Kagome and Sesshomaru slowly start developing a relationship and we discover that the person Kagome is currently seeing (an original character) is very physically abusive towards her.
That is pretty much the gist of what I remember; I can't find the story for the life of me and any help would be greatly appreciated