Without having read the 'Tensei Kendo no Harem Colosseum Light Novel', it's difficult to say exactly who the main characters are. However, based on the title, we can make some assumptions. The main character is likely someone who has been reborn (tensei) into this world. In a harem - based story, he would be the center of attention for multiple female characters. In the context of kendo and the colosseum, he might be a fighter or a student of kendo. There could be rival characters, both male and female, who oppose him in the colosseum or in his relationships. And of course, the female characters in the harem would also play important roles, each with their own personalities and backstories that would interact with the main character's story.
I don't have specific information on the main characters as I haven't read the light novel. It could be a young male protagonist given the common tropes in harem - themed stories.
Since it's a story about kendo and has a harem and colosseum elements, the main character might be a reincarnated individual. He could be a person with a natural aptitude for kendo. There might also be female characters who are part of the harem, perhaps some of them being skilled kendo practitioners themselves or having other unique abilities that draw them to the main character. Maybe there's a mentor - like figure as well who helps the main character in his kendo journey and in dealing with the challenges of the colosseum and the harem.
Chapter 118, "Poison Sac, Bow Making [2 in 1]", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. The setup is This number, although large, is actually not unattainable., but the pressure keeps building through The camp currently has seven Earth-digging Realm members, two of whom.... Once the chapter lands on There should still be a bit more at the mine;
Chapter 115, "New Earth-digging Realm, Enhanced Mining Efficiency [Three in One]", is the clearest early answer because Xia Hong finally turns buildup into a real advancement. Early on, I'm just waiting for the leader to announce it so I can hurry out to.... By the end, A single Earth-digging Realm could mine up to four hundred pounds of....
Chapter 39, "Three strikes and you're out.", is the clearest early answer because it turns Luo Ming's situation into a concrete plot event. A useful checkpoint is the way the scene starts with Having been the leader of Rogel Camp for fifteen years, Luo Ming... and follows through with Li Hu's face showed a flash of anger, and he immediately stepped....
Chapter 518, "It Will Be Too Late", is the clearest early answer because it turns Damien's situation into a concrete plot event. Early on, Damien did not move immediately after the interrogation and killing.... By the end, When the demon paused to examine a glowing rune carved into bark,.... Inside the broader battle storyline, the chapter closes with And this was only the beginning., which gives the immediate stakes a stronger narrative position and pushes the technology upgrade onward.
Chapter 343, "Betting On Damien", is the clearest early answer because it turns Lyone's situation into a concrete plot event. The chapter turns that into something concrete by moving from The crowd roared again as another fighter collapsed to the ground,... to Odds on him winning… eighteen to one." Lyone placed the coin.. What makes it stick is that the chapter closes with Lyone grinned.
Chapter 291, "Off To Velthorne II", is the clearest early answer because it turns Velthorne's situation into a concrete plot event. The setup is Damien soared through the sky atop Skylar, the great and mighty mana..., but the pressure keeps building through Below them, the vast landscape of small towns and villages stretched.... Once the chapter lands on He sat on the edge of his bed, staring at his own hands., the chapter closes with And then, he started walking.
Chapter 271, "People From His Homeland", is the clearest early answer because it turns Damien's situation into a concrete plot event. The chapter turns that into something concrete by moving from Damien sat in his room, staring blankly at the wall, his mind still... to I assume you're here to ask about the visitors from yesterday."....
Chapter 73, "Shocked by Cold", is the clearest early answer because it turns Rogel Camp's situation into a concrete plot event. It opens with In the quiet cave, the powerful sound of smithing continued... and closes on Even in the water, everyone seemed to perceive the cold gleam.... The key payoff is that the chapter closes with "Frostfire!, which gives Rogel Camp a stronger narrative position and pushes the power growth onward.
Chapter 69, "Xia Chuan Awakens", is the clearest early answer because it turns Xia Chuan's situation into a concrete plot event. The chapter turns that into something concrete by moving from Brother, it feels like there's a lot more in my mind now..." Before... to Amid his heartache, he also felt an immense sense of relief..
Chapter 51, "Conflict Resurfaces [Please Follow!]", is the clearest early answer because it turns Rogel Camp's situation into a concrete plot event. Early on, The camps surrounding Redwood Ridge, although all located on the east.... By the end, Western inner perimeter of Redwood Ridge Unaware of Da Shi Camp's....