Battle of Twilight's Honor

The Battle of Twilight's Honor was a large, costly battle by the Crab Clan after an invasion by the Shadowlands in the 12th century. The Crabs were unprepared for such a large invasion by a spawn of Akuma no Oni, and were forced deep into the Kaiu Wall's battlements and an adjoining castle. It is unclear exactly how the battle ended, but it is believed the Shadowlands had an ally within the castle that failed at a critical point, allowing reinforcements to arrive and push the oni's army back into the Shadowlands.