I Picked Up a Dragon Egg, and Now She Calls Me Dad

Kael Ashborne was sixteen, violent, foul-mouthed, and already the youngest Grand General in the history of the Suncrest Empire. Nobles hated him. Armies feared him. Assassins who came for his head usually lost theirs first. Then one night, Kael found a golden dragon egg on Zephyr Plains. He thought about cracking it open for dinner. Instead, a tiny silver-haired dragon girl hatched from it, stared at him with bright eyes, and called him— “Dad.” Kael did not want a daughter. Too bad. From that night on, the most dangerous man in the Empire became the father of the most mysterious little dragon girl in Elarion. And anyone stupid enough to touch her would learn one thing very quickly: General Kael was a nightmare. But Dad Kael was worse. — Description from novelcodex.org