A Seafaring Life from the Start as a Commoner

My world was destroyed, and there was only one way to survive: Beat the game I'm currently in, [Grand Line Simulator]. The conditions for victory and how to determine it are both unknown. There are six starting factions to choose from: [Marines] [One Piece] [Civilians] [Nobles] [Revolutionaries] [Special Races]. After careful consideration, I decided to play it safe from the start. A simple, ordinary life is best, so I chose the [Civilian] faction. After the game loaded, I dimly saw a face in front of me that looked like it had been kissed by a pig. I reacted instinctively and punched him. It was wrong to judge someone by their looks. I was just about to apologize when he tried to kill me. So I punched him again and beat him to death. The crowd around us fell silent for a moment. I opened the System notifications, which had been ringing nonstop. [Player has killed a World Noble, a Celestial Dragon, and earned 10,000 reputation points!] [Announcement: The Three Marine Admirals are about to be deployed!] I had no idea what Celestial Dragons or the Three Admirals were, but judging by the onlookers' expressions, I instinctively felt... This probably wasn't good. Friendly reminder: 1. The male lead is undecided. We'll follow the story, and whoever earns it can be the male lead. The heroine has one-sided crushes pointing at her from all directions. Pure-love purists, stay away. 2. Don't mention other people's stories under my work, and don't mention my work under other people's stories. 3. Third-person narration. Theme: The hymn of humanity is a hymn of courage