Primeval Champion

Ming Jiutian was the young marquis of the Ming family. 
After graduating from the academy, and being pushed by his grandfather, Ming Jiutian was about to be engaged to a beautiful disciple of an old acquaintance of his grandfather.
However, the day they finally met, the meeting didn't go as expected. The young woman's cold attitude, her curt responses, and the look of disdain on her face made her stance on the engagement clear.
"Do you think I don't know why your family is so anxious to arrange a marriage for you? Let me tell you, you only have fifteen years of lifespan!"
When he had just been born, a man kidnapped his mother, injured his 
father, and crippled Ming Jiutian's meridians. 
Everyone in the family thought it was the end for the young boy, but an immortal cultivator appeared and promised to heal him. However, he had something to attend to, so before leaving, he left some pills to prolong his life and the promise to return.
If fifteen years later the old cultivator was still alive, he would come to find the young boy to be his disciple. 
Otherwise, it meant that the old man had died, and the young one would be next