I don't know for sure since I haven't read it. But I would assume there is the karate survivor as the main character. There might also be characters in the other world that the survivor interacts with, like maybe a mentor - like figure who helps the survivor understand the new world or an antagonist who tries to stop the survivor from achieving their goals.
The main character is surely the karate survivor. However, in the other world, there could be a whole host of other characters. There might be a powerful wizard or sorcerer who initially views the karate survivor as a threat but later realizes their potential and becomes an ally. There could be a group of bandits in the new world who target the survivor for their unique abilities. And there may be a love interest, perhaps a beautiful and kind - hearted native of the other world who helps the karate survivor adapt and also falls in love with them. All these characters would play important roles in the development of the story.
Chapter 212, "This Guy is Actually Chasing Su Yinwan?", is the clearest early answer because it turns Jiang Yan's situation into a concrete plot event.
Chapter 555, "Peaceful Coexistence", is the clearest early answer because it turns Jiang Cheng's situation into a concrete plot event. Early on, If you don't want to be discovered, then simply don't do it," Bai Lu.... By the end, We cannot underestimate their strength, and today we chose defense..
Chapter 626, "Emergency PR!", 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 The drone hovering in mid-air had precisely captured this scene, and...
Chapter 483, "Why Does a Pig Eat M9?!", is the clearest early answer because it turns Lili's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Wilderness Survival Day 11, temperature 31 degrees, wind speed...
Chapter 320, "How is She Here Too?!", is the clearest early answer because it turns Xiao Su's situation into a concrete plot event. The chapter turns that into something concrete by moving from Although she thought this way, Su Yinwan still knew the importance of...
Chapter 427, "Wearing Slippers onto the Stage", is the clearest early answer because it turns Shiguang's situation into a concrete plot event. The setup is He was eager to break free, but Jiang Shixu, the skinny little guy,..., but the pressure keeps building through You, you let go of me!.
Chapter 586, "She Just Likes Men Who Show Weakness Initiative", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Jiang Yan quickly swam over to the person.
Chapter 604, "Shiguang, originally named Shen Guang", is the clearest early answer because it turns Uncle's situation into a concrete plot event. The setup is Fortunately, the other person did not recognize him;
Chapter 386, "New "Game" Mode", is the clearest early answer because it turns Shang Shaobai's situation into a concrete plot event. It opens with Seeing Shang Shaojing's somewhat pale face, Su Yinwan's heart felt a... and closes on After a long time, he finally spoke..
Chapter 591, "Is There a Way to Get to the Bottom of the Lake?", is the clearest early answer because it turns Array's situation into a concrete plot event.