—Rumei talking to Gomes
Rumei is a boss character encountered in Fire Emblem: Thracia 776. He is a Dragon Knight of Thracia who is hired by Gomes and the Mount Violdrake Bandits. He is fighting to feed his three children (Eline, Mahal, and Min) and if captured by Leif he promises to support his children with a real job from now on.
Rumei's stats are profoundly poor for a boss, but this is balanced by the fact that the player is expected to capture him. Though his Defense is poor, the building on which he stands gives him the standard +10 defense that many of Thracia 776's bosses enjoy. This makes it extremely difficult,if not impossible, to capture him with iron weapons alone. On Turn 15, Rumei will mount his dragon, and it will no longer be possible for the player to capture him.
If Lifis has enough Build (and somehow hasn't run out of Stamina by this point), he can steal Rumei's Iron Sword, allowing the player to capture him without a fight. Otherwise, Finn's Brave Lance is a solid fallback. Once Rumei is captured, the player should remember to loot all of his valuables.
Whatever method the player chooses, he or she should not release Rumei. Thracia 776 treats enemies that the player released the same way it treats ones that the player killed. Chapter 8x can only be accessed if Rumei has been captured by the player, but not released.
—Rumei's Releasing Quote
—Rumei's Death Quote