Since I'm not familiar with a specific 'Passion Yuuji' novel, in general, a novel might have unique characters. Maybe the characters in this novel have strong emotions and passions that drive the plot forward.
I'm not sure as I haven't played this visual novel specifically. There could be a lot of different interactions between characters in a visual novel, but without experiencing it first - hand, I can't say for certain.
He might be depicted as confident. In a visual novel, this could be shown through his interactions with other characters, where he takes the lead in conversations or situations.
No, there are no sex scenes in the Labyrinth of Grisaia Yuuji story. It is a visual novel that focuses more on the story, character development, and the exploration of relationships in a non - explicit way.
Well, Kazami Yuuji in a visual novel can have various roles. He could be involved in different story arcs, for example, a love story arc where he has to deal with his feelings for other characters. His design in the visual novel might also be quite distinct, with unique hair color, clothing style that gives players an idea about his personality at first glance. And his actions and decisions throughout the visual novel are what make the story interesting and engaging for the players.
A popular theme is also the exploration of their backstories. There might be fanfictions that delve into their pasts, how they got into volleyball, and how their early experiences shaped who they are. This can add depth to their relationship in the fan - created stories, as it gives a better understanding of their characters.
Their personalities could interact in a way that balances each other out. Kyoutani is very focused and driven, which could inspire Terushima to be more serious about his volleyball skills. On the other hand, Terushima's fun - loving nature could help Kyoutani relax a bit. In a practice session, Kyoutani's intense concentration could rub off on Terushima, making him work harder, while Terushima's lightheartedness could make Kyoutani less uptight and more adaptable during the game.