As we don't know the details of the 'call girl mc story', it's impossible to say for sure who the main characters are. But most likely, the call girl herself would be a main character.
Since we have so little information about this 'call girl mc story', we can only assume. The call girl would be a central character, and there might be clients she interacts with who could also be important characters. There could also be other people in her life like friends or family members, if the story delves into her personal life outside of work.
Given the lack of information about the 'call girl mc story', the main character is probably the call girl. However, depending on the nature of the story, there could be other significant characters. For example, if it's a story about her trying to escape the life of a call girl, there could be a mentor - like figure who helps her. Or if it's a story set in a competitive environment among call girls, there could be rival characters as well.
Chapter 587, "Has He Also Become a Part of the Play?", is the clearest early answer because it turns Bai Lu's situation into a concrete plot event. It opens with Zhao Lang said "thank you," but his eyes reluctantly glanced at Jiang...
Chapter 756, "Birthday Banquet", is the clearest early answer because it turns Sister's situation into a concrete plot event. Early on, On the day of the birthday celebration, the Jiang Family got up early.. By the end, He had previously warned Jiang Li not to make it so grand, but Jiang....
Chapter 559, "This is the Worldview of the Main Female Lead", is the clearest early answer because it turns Guo Xing's situation into a concrete plot event. Early on, You!" Ai Xiaochun gasped, unable to speak, her teeth clenched as she....
Chapter 449, "Do You Two Have to Be So Abnormal?!", is the clearest early answer because it turns Fengshui Array's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Ahhh, the young master's good looks have finally returned!" "Wuwuwu,...
Chapter 471, "This is What Happens When You Abandon Sister Li!", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Seeing the thick wooden stakes Jiang Li had brought down, Yu Li...
Chapter 430, "I Quit", is the clearest early answer because it turns Director Zheng's situation into a concrete plot event. It opens with Hey, do we join a team that's short on members, or do we form our... and closes on You still have time to quit." "Who said I was quitting?" Jiang Li....
Chapter 432, "Return to the Homeland!", is the clearest early answer because it pushes Miss Jiang into a new phase or setting. The chapter gives readers a real answer by opening on Jiang Li had also received the updated rankings. and ending on He looked at the owner with a hint of surprise..
Chapter 523, "Are the Researchers Sweating Profusely Now?", is the clearest early answer because it turns Are's situation into a concrete plot event. The chapter gives readers a real answer by opening on This is supposed to be a life-saving 'peace charm' tailored for the...
Chapter 496, "Hot Pot Tonight!", is the clearest early answer because it turns President Shang's situation into a concrete plot event.
Chapter 395, "She's Not Trying to Use Under-the-Table Tactics, Is She?", is the clearest early answer because it turns Table Tactics's situation into a concrete plot event.