Most likely King Arthur, his most famous knights like Lancelot and Gawain could be main characters. Also, if there's a focus on the Sangrael, maybe a character who is in charge of protecting or searching for it. Merlin, the wizard, might also play an important role as he is often involved in Camelot's affairs.
Since it's a story about Camelot, King Arthur is almost surely a main character. He is the king around which the whole Camelot legend revolves. His knights, who are known for their bravery and chivalry, would also be important characters. If the Sangrael is a significant element in the story, there could be a character whose sole purpose is related to it, perhaps a guardian or a seeker. And of course, characters like Guinevere, Arthur's queen, could also be among the main characters as she is often part of the complex relationships within the Camelot story.
Chapter 343, "Five Cycles of Bone Tempering, 1,000 Zong Bone Burning in the Visible Yang Realm (Part 2)", is the clearest early answer because Great Xia finally turns buildup into a real advancement. It opens with Next is the Small Ancestral Spirit Tablet, which not only adds a... and closes on But to his utter surprise, by this time it was already too late!.
Chapter 54, "Acting Righteously Hits the Trending List Again!", is the clearest early answer because it turns Chixia Village's situation into a concrete plot event. The chapter gives readers a real answer by opening on Five minutes later, the people of Chixia Village, who had received...
Chapter 16, "He Actually Fell Asleep", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Just as the words fell, Jiang Shixu swiftly cast his eyes downward.
Chapter 61, "Young Master Before vs After Going to the Countryside", is the clearest early answer because it turns Sailor Moon's situation into a concrete plot event. It opens with Hahahaha, oh my god, Jiang Li's mouth is even more venomous. and closes on A cold shower is pretty normal, right?.
Chapter 22, "Number 7203", is the clearest early answer because it turns Xiang Hao's situation into a concrete plot event. Early on, Hearing this, Su Yinwan looked at Shang Shaojing with a face full of.... By the end, Jiang Li's righteousness temporarily shut Jiang Yan up, but after a....
Chapter 362, "Just Donated Over Ten Million", is the clearest early answer because it turns Jin Siyue's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Do you know what you're saying?" Jin Siyue was successfully amused to...
Chapter 426, "How Did Someone Fall Down?!", is the clearest early answer because it turns Xi Yang's situation into a concrete plot event.
Chapter 14, "She Looks So Cool Dancing with a Gun", is the clearest early answer because it turns Dingyuan Marquis's situation into a concrete plot event. The chapter turns that into something concrete by moving from Lin Manru had a rare good night's sleep.
Chapter 64, "The Morning Battle", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter gives readers a real answer by opening on Chixia Village lay in tranquil slumber. and ending on He'd been a host for so many years; he was used to it..
Chapter 346, "Mighty Soldiers, One Against Three, The Cause of the Beast Tide", is the clearest early answer because it turns Beast Tide's situation into a concrete plot event. It opens with five million!" "Silver is just one of the main materials used in the... and closes on Among the Six Armies, the first batch to rush up are all the....