By season four, the mystery has stopped being about the coffin and started being about whether these five can survive knowing what they know. The cast has earned their trust through three seasons of stumbling and learning, and now the martial world is closing in on them all at once. What makes it hit is that there's no safety net anymore, every answer they've uncovered has put them deeper in danger, and the show knows it. The real threat was never the golden coffin. It was the price of understanding it.

After leaving the immortal mountain behind, the two peerless masters Mo Yi and Baili Dongjun withdraw from the world. Xiao Se has his hidden meridians restored and recovers his true standing, while Lei Wujie and the others receive gifts from the immortals that raise their strength to varying degrees. Having parted in the martial world, the group resolves to head for Tianqi City and meet again at the imperial court. There three powers converge: Xiao Se as King of Yong'an, Xiao Chong as the White King, and Xiao Yu as the Red King. Their gathering opens the fight for succession, leaving open the question of who will take the throne. The fourth season of Shaonian Ge Xing runs as a 26-episode ONA blending action, adventure, fantasy and mystery.