Zhang Dongcheng leaves behind his identity as the Dragon King and lives in seclusion with the Shen family for five years, secretly helping them rise to power. However, the Shen family sees him as a freeloading, useless member, prompting Shen Wanting to demand a divorce. Unable to endure the insults, Zhang reveals his true identity at the Shen family's grand event, shaking the foundations of the three powerful families and exposing the corruption of Jiangcheng's elite. Returning to his roots to support his childhood friend, Miss Song, Zhang attends a high-stakes investment meeting where he dismantles a conspiracy led by Lei Xiong. Lei Xiong's power bid fails as Zhang unravels his plot, ensuring the safety of the great Summer Dynasty.
