Nine Profound Coffins

Lin Xuankai, the discarded son of the Lin family, carries an ancient bloodline yet is unable to cultivate for life. To secure his genius younger brother's path to immortality, he is forced to take his place in a marriage alliance and become a live-in son-in-law of the Taixu Ancient Clan, enduring endless cold stares and humiliation until he is gravely wounded and on the brink of death. At that moment, the seven golden coffins within his body burst open—the ancient emperor's inheritance and the Heaven-Evading Secret Ring within them become his. Why, after eons of silence, did these ancient treasures choose him alone? — Description from novelcodex.org