After clearing the Black Dragon God's dungeon with the help of the beautiful adventurer Altria, Seiichi and Saria are accepted into the Guild as full-fledged members. Not long after starting his work, he decides to buy a horse, but takes a liking to Lulune the donkey instead. That's all fine and well-Seiichi ends up registering his new steed in the great Capital Cup Derby! Meanwhile, the country his classmates were summoned in-the Kaizell Empire-begins moving in the shadows, and the demonkin of the Demon Realm reply in turn?The third explosive volume of The Fruit of Evolution has finally arrived!