In which novel did the protagonist of the first chapter save a group of people's lives?

" Doomsday Voyager " is a sci-fi and doomsday crisis novel written by the author's pen name. The general plot of this novel is: The age of sailboats, the age of behemoths! Build ships and cannons! Add cannons to the side of the ship, steer, fire! It was the beginning of the era of naval warfare. Snatching the population who could farm, developing the deserted island, and traveling the four seas! A small boat hanging alone in the sea, huge waves and storms, ghost ships carrying ghosts and dead objects, sails swaying in the storm, and cannon fire that cut through the darkness together with lightning! 。 ---------------------------- " The Great Voyage of the Empire " was a novel about urban life written by the author, Love at the Cape of Good Hope. The general plot of the novel was: This was the best era. At the pier, dusk. A fleet loaded with jewels and gold docked. Another navigator had struck it rich. The bulging purse aroused people's infinite desire for adventure and wealth. Follow the sound of the Great Voyage Horn and make a fortune? No, I was the first to pick up the horn. My life belongs to the ocean, to adventure! Fleet Communication Group 291518350. ---------------------------- One Piece's Heart of Protection was a light novel written by the author, Suckbag Pig. The general plot of the novel was: If kindness is a sin, if protecting the nobles is our true duty, then whose justice is the justice that our navy bears? The hero of the navy died in vain, his youngest son was a slave for more than ten years, and he bore a blood feud. How would he choose... ---------------------------- First Sequence was a novel written by the author, The Talking Elbow, which was a novel about urban supernatural powers. The general plot of the novel was: On the wasteland, the civilization of mankind was able to survive. Strongholds rose from the ground one after another, but order continued to collapse. Some people said that when a disaster struck, mental will was the first weapon that humans used to face danger. Some people said, don't let the sorrow of the times become your sorrow. Some people say that I want my sorrow to become the sorrow of this era. This was a new story. After the calamity, he finally saw the light. ---------------------------- " King of the Island: Survival on a Rraft " was a novel about urban life written by the author, Really Funny. The general plot of the novel was: In a world that was similar to raft survival, others could recruit sailors, but I could only recruit monsters. I must become the king of the island! ---------------------------- " The Savior's World-Destroying Manual " was a light novel written by the author, Lord of the Tonight. It was a fantasy novel. The general plot of this novel was: Passerby: " So you're the mastermind behind this. We trusted you so much!" Jiang Chen: "..." Jiang Chen: " Don't blame me. It's all for humanity. I can't lose, so I can only ask you to die." [Game 1: Deep Sea Battle Royale][Game 2: Who is the killer?] [Game 3:?] " My goal has always been one."" To live…"" And win every game by hook or by crook." This book is also known as " I, who turned the tide for mankind after my rebirth, became the villain?" Wan Xiang is finished. This time, I definitely won't cut it. I guarantee on my character. ---------------------------- One Piece Reborn: Vice-Captain was a light novel by the author, Tian Jing. The general plot of the novel was: The desolation of the former navy genius, the expert whose name shook the great sea route, on the day he betrayed the navy! Was he a spectator living in the Grass Hat Pirates, watching the arrival of the era, or was he unable to escape the choice of fate? In this turbulent era, one man and one sword, walking on the road of seeking answers or realizing their own ambitions. On this great sea route, everything was still like fate, changing! I created a new book friend exchange group, welcome to join! 555368384。 ---------------------------- Invincibility from the First Time was a novel about urban life written by the author, King Is Very Busy. The general plot of the novel was: The first time he was shot, he received a bulletproof equipment! First kiss, intimacy +999! This was the first time he had been struck by lightning, and he had mastered the power of lightning punishment! The number of first times in one's life was the number of system rewards! Invincibility started from the first time! Seven years ago, his entire family perished in a sea of fire. Seven years later, he returned from hell. A debt of blood must be paid with blood. One man, one blade, one system, they killed their way through the battlefield, killing their way through the sea of blood! ---------------------------- One Piece: The Navy's Ultimate Justice was a light novel by the author, Lost Little Shadow. The general plot of the novel was: He came to this world by accident and became the second generation of the navy. Although he was talented, he thought about his life as a salted fish and unexpectedly discovered that he could obtain the mark of a strong cultivator from some weapons. "Actually, at first, I just wanted to live well and be my second generation." " But this world doesn't fit my thoughts!" "Do you know the feeling of being out of place?" " If you don't want to change yourself, then change it yourself, change this sick world!" ---------------------------- " The Story of a Ship Girl from Another World " was a light novel written by the author, who read someone else. It was a derivative doujinshi novel. The general plot of this novel was: In the world of the fusion ship R and C, the deep sea occupied 85% of the ocean. This was the story of an admiral leading his ship to fight back against the deep sea. " Admiral, the target sea area has been cleared." "Return." "Report, we still have strength left. I think we can still…" "Return." "... First formation, change course!"