At the Beginning, My Double Dragon Girl Is an Ancient Pure Blood.

Lin Jin, a former extreme wingsuit athlete, traveled to the continent of Aitra and became an outcast from the academy with zero dragon power. At the beginning, his ribs were broken by a noble, and he awakened the Supreme Killing Dragon Rider System - kill enemies and upgrade, and all attributes will be permanently improved. With the fate of "Dragon Riders Twins", he is destined to form a bond with the two-headed dragon. The first one is Xiye, an ancient purgatory pure-blood dragon whose bloodline has been sealed. It was abandoned in the old dragon nest for three years and lingered on. The second head is Canglan, the ancient Thunder Deep Sea pure-blood dragon, whose life experience is a mystery. A useless knight and two useless dragons. Start from the bottom of the academy, hunt monsters, unlock bloodlines, fight against nobles, and conquer the dragon realm. When the ancient bloodline awakened, the world discovered that the so-called waste was just dormant. Kill decisively, not the Holy Mother. The bond between the two dragons, from mutual defense to life and death dependence. The system is a bad friend, it can complain and be lazy, but it is reliable at critical moments.