Mocked and betrayed for awakening the "useless" SSS-class Dragon Tamer profession in a world where dragons are extinct, Caleb secretly activates a Dragon Evolution System. After awakening a powerful Red Dragon girl, he rapidly levels up to protect his family. Facing demonic monster invasions and the cruel Prince Tristan's assassination plots, Caleb must hatch new dragons and master his powers to save the academy from total destruction.
