I was at a loss of who this was until Bill was mentioned. (I thought it was an OC) But it's beautifully written, heart wrenching in the end. I admit I like Falco/Katt as much as I like Bill/Katt.
Again, great story.
AmberRose

Wow, that was really good. Quite a nice surprise ending. I thought it was Falco's POV. XD Very good. =3