Dagger: Yuushiki no Ikusabito

Several days after the events of Frontlines of the War... Tisto and Aisis visit the spiritlands to repay their spared lives. Waiting for them is a room and a culture unlike any ever seen before, and the bewildered duo are given a rough welcome and a request: "Our world thrives on help from the humans. For that reason, as necessary, we must submit to them."