Hola!! Creo que él fic que estás buscando es Second Alliance by Imani Joain, Rated MA
A new threat has breached the peace left in the wake of Naraku's defeat. This time, it will be Sesshomaru who must propose an alliance to defeat an enemy he has no experience with: a death that claims humans and demons alike. Only his half-brother's strange miko truly understands the danger, and she is the key to conquering it. Originally posted on fanfiction.net. Revised edition here. 2nd Semi-annual 2013 Dokuga Awards: Best Canon, 1st Place; Best Kagome Portrayal, 1st Place; Best Sesshomaru Portrayal, 3rd Place; and Best Darkfic/Horror, 3rd Place. Nominated for Best Romance. October 2014 Feudal Association Awards: 1st Place Best Drama Fiction.
El 2do no estoy muy segura pero me parece al fic She Who the Prophecy Foretold by SunsetMiko, Rated MA
She Who the Prophecy Foretold
Yes, I have posted a new chapter! Sesshoumaru needs the help of a miko, and only one will do. His request for aid sets in motion an ancient prophecy, leading them all on an unexpected quest. Secrets kept for years finally are told, and an unsuspecting Kagome is thrust into a mission with a whole new set of tasks and troubles. She is the priestess spoken of in the prophecy, the one sent to redeem Midoriko, and her already strange life is once again turned upside-down.