The other Titans could be main antagonists. For example, Hyperion who is known for his great strength and his desire for destruction. He might not fully trust Percy and constantly try to undermine him in Kronos' eyes. Another could be Atlas, who is already a major foe in the Percy Jackson series. He might see Percy as a threat to his own plans within Kronos' regime.
Definitely some of the more powerful monsters that are allied with Kronos. The Minotaur, for instance, could be a recurring antagonist. It has a long - standing hatred for Percy and would love to see him fail. Also, the dracaenae could be a nuisance for Percy. They are sly and could be used by Kronos to keep an eye on Percy and make sure he is following orders.
In this fanfiction, some of the demigods who have fully given in to Kronos' will could be antagonists. They might see Percy as a threat because he still has some sense of his own will. For example, a son of Ares who has been corrupted by Kronos' power. He could constantly challenge Percy and try to prove his loyalty to Kronos by getting rid of Percy.
A practical answer is Chapter 229, because it turns the idea into a concrete scene. The chapter opens with Huo Ziyang's face had already turned deathly pale., adds pressure through It looks like we need to continue working hard too., and ends on Isn't it enough to teach a child a lesson when he.
The best chapter pointer here is Chapter 206, "Miss Su, Thank You So Much!". It opens with Five minutes later, Xingxing led Ah Fu out of the room by the hand. and closes on He was the oldest of several siblings and the most understanding of human....
Chapter 232 is the strongest chapter-level answer because it starts from But soon, she suppressed this strange feeling and slowly began to speak,... and follows through on The moment he saw the information come through, Jiang Li fell silent..
If you want the clearest chapter reference, go to Chapter 224. Early on, Jiang Li, ranked number one, was directly taken by the staff to an elegant...; later, the chapter leans on The building had two floors, decorated in an elegantly serene manner,....
Chapter 229 is the strongest chapter-level answer because it starts from Huo Ziyang's face had already turned deathly pale. and follows through on Isn't it enough to teach a child a lesson when he makes a mistake?.
The best chapter pointer here is Chapter 257, "Did Jiang Li Get in Through the Back Door?". It opens with This nation seemed to have a particular love for bright colors. and closes on Yet in the end, not only did she have no sense of guilt, she even forgot....
A practical answer is Chapter 212, because it turns the idea into a concrete scene. The chapter opens with Although she appeared outwardly flattered, in fact, her heart was already..., adds pressure through Could it be that the sister's anti-fan who cursed her on Weibo was Jiang..., and ends on.
A practical answer is Chapter 259, because it turns the idea into a concrete scene. The chapter opens with While the villagers of Chixia Village were all immersed in the revelry of..., adds pressure through Wasn't she the same girl who had come to them with a group of villagers..., and ends on It.
Chapter 254 is the strongest chapter-level answer because it starts from Just when everyone thought that Jiang Yan wouldn't last long and would... and follows through on A Jiang Li whose head was only filled with books and who never joked or....
The best chapter pointer here is Chapter 225, "Just 100,000? Are you buying mineral water for the boss?". It opens with When Zhao Lang's devastatingly handsome face appeared, all six people... and closes on Which big shot is inspecting again???] [The ID is still in the United Arab....