The church has asked Constance to retrieve a mysterious Relic from Duke Gerth, the Empire's Minister of Foreign Affairs. When the party returns to Garreg Mach Monastery, Yuri reveals that he bears the Crest of Aubin required to use the Fetters of Dromi and convinces Byleth to let him make use of the Relic. Afterwards, Duke Gerth gives the group the Fetters of Dromi in order to repay them for saving him and repay a debt he owes to House Nuvelle. The group drives off the enemies and rescues the Duke.

When the party arrives in the Empire, they discover that Duke Gerth is under attack by a pack of brigands and members of ' those who slither in the dark' led by Myson. The group sets out for Imperial territory. Yuri further reveals that most of the Relics were returned to the descendants of the 10 Elites ages ago and speculates on how the Relic ended up in Gerth's possession. Her mission is to obtain a Hero's Relic in Gerth's possession and return it to the Church of Seiros, which feels that the Relic should belong to them.

Constance holds a grudge against House Gerth due to the fact that her family, House Nuvelle, was destroyed in the war against Dagda and Brigid while Gerth retained its prosperity she hopes for the chance to give Duke Gerth a tongue-lashing. She explains that she has been ordered to travel to House Gerth of the Adrestian Empire. Byleth and Yuri find a completely elated Constance.

Monster legends relic list