The war between the Human race and the Demon race has finally come to a truce. In accordance with a sentence in the contract signed at that time, I went to the Demon Country. Was it as a sacrifice or as a guest of honor? I don’t know that as well. I went to the Demon country with determination, and now, I’m trapped in a cage like a birdcage. Inside the cage, there is nothing to do but just quietly watch the Demon King and the others do their work…