"This is our village! We'll protect it ourselves!" After coming to Zeltoble, Naofumi and his companions managed to ascertain the whereabouts of the demi-human slaves of Lurolona Village—bought and sold on the dark auction. In order to get them home safe, they turn to the Coliseum to make a fortune as fast as they can, but will the scheme work? Meanwhile, Keel and the others guarding the village must face off in a battle against a remnant force of the Church of the Three Heroes!