Rune Factory 3: A Fantasy Harvest Moon[a] is a 2009 simulation role-playing video game developed by Neverland for the Nintendo DS.

When Micah finally becomes engaged with one of the bachelorettes, his girlfriend mysteriously disappears on their wedding day and he sets into a ruin located on the outskirts of the village to find her.

Reaching the deepest part of the ruins, Micah is forced to confront Aquaticus, a large water dragon who is keeping his girlfriend imprisoned, claiming that humans and Univir should never become together and he, a half-monster should not marry into neither race.

Seeing Micah's determination to fight for his bethroed, Aquaticus reveals that all was part of his plan to have both humans and Univir reconciled as only the Sharance Tree could be fully-restored to prevent the world's destruction, having wiped his memories to ensure that he completes this task.

The game ends with Micah's marriage with his girlfriend and the Sharance Tree in full bloom once more, after which the couple may opt to have a child.