Since I'm not familiar with the 'the kings ring novel', the main characters could include the king himself, who is obviously central to the story because of his ring. There could be a loyal knight who helps the king protect the ring. And maybe there is a wise old wizard or advisor who knows the true power of the ring and gives the king counsel regarding it.
I don't know as I haven't read the novel. But there would probably be the king as one of the main characters, since it's the king's ring. There might also be a villain who wants the ring.
As I haven't read this particular novel, I can only speculate. The king would be a main character for sure. There might be a princess or a queen related to the king who plays an important role in the story, perhaps being involved in the protection or discovery of the secrets about the ring. There could also be a group of thieves or rebels who are after the ring, and their leader could be another main character.
Chapter 862, "A Penny Won't Buy Loss, Won't Buy Deception", is the clearest early answer because it turns Won's situation into a concrete plot event. The chapter gives readers a real answer by opening on Right after, the trending searches started.
Chapter 818, "A New Village Amid Shadows and Brightness", is the clearest early answer because it turns Xuezhi's situation into a concrete plot event. Early on, Wanzhi stared in shock, her eyes wide open, "What you said....
A practical answer is Chapter 11, because it turns the idea into a concrete scene. The chapter opens with After a meeting, Shang Shaojing pinched the bridge of his nose, tired, and..., adds pressure through Qin, could you pour me a cup of tea as well?, and ends on Miss Qin, please accompany us to.
Chapter 835, "Is this your way of handling things? So pathetic.", is the clearest early answer because it turns Capital's situation into a concrete plot event. Early on, In a private teahouse in the Capital, a few bejeweled wealthy ladies....
Chapter 839, "Because There's a Good Show to Perform", is the clearest early answer because it turns Shi Lei's situation into a concrete plot event.
Chapter 649, "Where Did the Wild Wolf Come From?!", is the clearest early answer because it turns Shang Shuyue's situation into a concrete plot event.
Chapter 486, "So It's All Set Up, Right? Then She Will Set Up Too!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Hearing Jiang Li's words, the audience in the live stream was also...
Chapter 567, "Distant Nephew, Long Time No See", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. The chapter turns that into something concrete by moving from After separating from Jiang Li and the others, Team L headed in the...
Chapter 656, "If he's the grandson of the richest man, then I am the richest man!", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event.
Chapter 852, "Could That Be an Aphrodisiac Spell?", is the clearest early answer because it turns Xu Ning's situation into a concrete plot event. The chapter turns that into something concrete by moving from Rong Junsheng's words startled Shi Lei and Rong Kexi.