Ethan Lane, who was imprisoned on Blackstone Island for five years, was framed by his family to take the fall for a crime. While in prison, he was taught peerless martial arts and medical skills by hundreds of reclusive masters, and awakened the Nine Yang Dragon Physique. After being released from prison, he encounters Summer Tate facing a recruitment son-in-law crisis, and steps forward to marry Summer Tate, who carries an extreme yin physique and bears facial scars. He takes down the cold, biased Lane Clan, subdues the underground forces of the North River Region, and heals Summer Tate's scars. At the same time, he saves Sloane Sullivan, the CEO of the Sullivan Group who is suffering from cold poison, and gets drawn into disputes between provincial capital business groups and overseas forces. As the Blackstone Legion rushes to his side when he is in danger, Ethan Lane's hidden identity as their young master gradually comes to light, and he embarks on an exciting, action-packed life of sweeping away all his enemies.
