I'm sorry, without more information about the 'euphoria original story', it's impossible to determine the main characters. It could be a story with a young protagonist on a coming - of - age journey, or it could have multiple main characters with different personalities and goals.
Since I don't know the exact 'euphoria original story', I can't say for sure who the main characters are.
Since I don't have specific information about this 'euphoria visual novel' in detail, we can assume that the main characters are probably the ones whose perspectives the story is often told from. They could be characters with unique goals or problems that need to be resolved throughout the course of the novel. Maybe there's a character who is on a quest for something, like finding a lost item or trying to solve a mystery that involves the whole community in the story world.
I don't know for sure since I haven't read it. But typically in a graphic novel, there could be a hero or heroine, like a young person who is brave and curious. There might also be a sidekick character who provides support and comic relief.
The main character is Nemu Manaka. She is central to many of the events in the 'Euphoria' story.
I'm not entirely sure specifically what the 'euphoria original story' is without more context. It could be about a story filled with intense emotions, perhaps a journey of self - discovery or a complex relationship among characters.
If it's a different '300 original story', perhaps the main characters are the leaders of the 300. For example, if it's a group on a quest, the ones who are in charge of leading the 300, making decisions, and guiding them through the various trials and tribulations would be the main characters.
In the original 'Alice's Adventures in Wonderland', the main characters are Alice, the White Rabbit, the Cheshire Cat, the Mad Hatter, and the Queen of Hearts.
In the original batman story, there are several main characters. Bruce Wayne, who is Batman, is of course central. He is the one on a mission to save Gotham. Alfred, his butler, is a very important character as he provides support, both emotional and practical, to Bruce. Commissioner Gordon is also a main character. He is an ally of Batman in the fight against crime in Gotham. He helps Batman in various ways, like sharing information about crimes in the city.
The main character is Charles Lee Ray, the serial killer whose soul gets transferred into the doll, and of course, Chucky the doll itself.
The main characters are a priest and a novitiate. They are the ones sent to the abbey to deal with the situation regarding the possessed nun.
The main characters in the 'Pitcairn Original Story' are likely the Bounty mutineers. They were the ones who initially settled on Pitcairn Island.