IS 478. On the Southern Continent in the country of Nagarea, the isolated civilization has begun a steady downward spiral of corruption and darkness. For Daunte, his main concerns are survival and the wellbeing of his little brother. But as the Tenkai Star, he is destined to lead the 108 Stars of Destiny into battle against the forces tearing his country apart.

[SPOILERS!] The story of a relationship between the Sole Survivor (F) and MacCready. Framed around story quests, so there's definitely Fallout 4 spoilers involved!