There could be a brilliant scientist character. In a story set across the universe, a scientist would be crucial for understanding the new worlds, technologies, and phenomena that are encountered. They might be the one who figures out how to solve problems related to the strange new environments.
I'm not sure specifically as I haven't read it in full. But generally, in this kind of light novel, there could be a young and brave protagonist who is eager to explore the universe. There might also be a wise mentor figure to guide the protagonist on their journey.
Love could be a main theme. In many stories set in the universe, love often transcends boundaries, whether they be physical distances between planets or different species. It can be about the love between characters that drives the plot forward.
The characters included the male lead, Xiao Zhang. My name is Xiao Zhang, and I'm arrogant and despotic. The Wind Raises the Heaven. It was a wuxia fantasy novel with elements of martial arts and the strong. User's recommendation: Traveling to another world with a ghost. Here, there are people in power who control the life and death of the people, martial artists who can cut mountains and rivers, and cultivators who enter and leave the world. There are disputes in the imperial court, clans and families fighting each other. Ordinary ants are carried forward in the torrent of power. There are also dragons and snakes rising in the grass. Everything is to survive. Those who block me will die! . I hope you will like this book.
As I don't know the details of this 'across the river novel', I can't tell you the main characters.
I don't have enough information to tell who the main characters are. Since it's just the title 'across the bridge novel', it could have a wide variety of character types, like a young adventurer, an old hermit, or a family trying to cross the bridge for some reason.
I'm not sure specifically as there are countless 'across the time fanfic' out there. It could be the main characters from the original work that the fanfic is based on. For example, if it's a fanfic based on 'Doctor Who', the Doctor could be one of the main characters as he is already associated with time - travel.
The characters included the female protagonist, Rainy Season, a girl who liked to live in her own fantasy world. Dare to love and hate, under the armor of a strong heart is a weak heart. The male supporting role was Qian Ta Ge, the male supporting role was Starry Sky, and the male supporting role was Death Nai. [My Grocery Store Spreads Across the Universe] Author: The Sleepy-loving balloon is a fantasy/high-martial arts world novel. It has been completed and can be enjoyed without worry. [User recommendation: The God of Act-Tough is about to descend into the universe and be reborn.] It would gather Di Ba, Night King, Heaven Covering Vicious Man, Mountain Sea Pangu, Ancient Gold Wuxia, Holy Ground's Chu Wudi… He attacked the Ten Realms and Eight Desolates Forbidden Lands, the mastermind behind the scenes, the mystery of Pangu's death, specially trained martial arts heroes to cultivate, attacked the ruins, and after ascending… Grocery stores opened all over the universe, and countless big shots gathered together to keep warm. They formed the strongest army of the heavens and tore apart the endless eras… It originated from the [Celestial Provisions Shop]... I hope you will like this book.
It's possible that the main character is a survivor of some great catastrophe that led to the world becoming desolate. Alongside them, there could be a group of comrades with different skills and personalities. Some might be good at combat, while others are more knowledgeable in things like survival techniques or ancient lore.
I don't know exactly who the main characters are since I haven't read it. But it's likely that there are angels as main characters, maybe an archangel who has a significant role to play in the events of the story.