OK this just popped into my head while staring at a chibi Inuyasha pic.
Here is what I want: After the battle an Immortal Harry decides to go back into the past to see if he can change things for the better. However, brash Gryffindor that he is, he ends up in Feudal Japan. He meets Inuyasha right after Sessoumaru banishes him from the castle. Harry takes Inuyasha in and Inuyasha MUST call him Mama. Because Harry is Immortal he looks the same when Inuyasha is grown as he did when they first met. You can follow Inuyasha canon or remove the Kikyo incident if you want. I would strongly prefer a effiminate Harry as this will be slash and well come one almost every demon in the manga had me second guessing. Pairing is up to you though I'm crossing my fingers for Sesshy/Harry. The idea of Inuyasha vehemently protesting Sessoumaru's advances towards his mama is hilarious.
Please PM if your gonna take up the challenge.
P.S. I would prefer someone who is gonna finish it.