Seventy years have passed since Robin and Chrom defeated Grima, Robin having killed Grima supposedly. Generations have passed and now the world has changed dramatically. Ylisse and Ferox have maintained a friendly and strong relationship, Plegia has had numerous civil wars over the throne and very recent established a ruling council with help from Ylisse and holds elections. Rosanne has become the home of The Church of Naga hosting several key artifacts.

The Taguel have returned, a handful of survivors were located having lived far north and have been gifted land in Ylisse and even have Lord to represent them. A small island off the coast of Ylisse and Plegia has recently been discovered and hosts a Manakete tribe. Shepherds were disbanded as the Pegasus knights were reformed and a Ylissian army was created to keep the country side safe. Ylisse established the Tacticians academy to train bright young minds and commanders for it's forces.

These shifts have created a world of peace yet now it is threatened. Rosanne and many smaller countries who are heavily devoted to the Church of Naga have donated forces to the church to protect it. Other nations worried about the idea of a religious group having troops sent delegates to a large convening of nations with the Church. However the Church and it's backers stated there intentions clearly, a crusade. A crusade to remove all who do not worship Naga and especially Grima cults fearing that they could return the dark god to life.

Yet Tiki the voice of Naga spoke up at this meeting, stating that this is not Naga's will and more importantly that they cannot succeed. Before she was forced out of the meeting she pointed out one of Ylisse's delegates, a young tactician. She yelled before the room that he would Naga's champion in this matter, not the Grand Cleric. With that the Ylissian delegation quickly left Rosanne and returned to port. Worriedly now the Tactician knows he will be hunted, he must assemble a force to protect his home and try to stop the madness the Church has begun.