Before starting a new Master League, go to the Main Menu > Extras > Edit . You can transfer all the world's best players (like Messi and Ronaldo) to your chosen team or a "dummy" team for free. When you start your ML career with that team, you'll have a squad worth billions that you can sell to immediately boost your budget. 3. Ethical "Cheats": Strategic Budget Management
Here are some valuable tips and tricks that can help you to accumulate wealth and manage your finances effectively in PES 2018 Master League mode: Pes 2018 Master League Money Cheat
It sounds like you might be looking for one of these methods: 1. For PC Players: External Editors (Cheat Engine) Before starting a new Master League, go to