Here is everything you need to know.
If you need a specific save (e.g., 100% story, all characters unlocked), check: inazuma eleven victory road save file
For Nintendo Switch/Switch 2, a subscription is required. Here is everything you need to know
While many seek custom files to skip the grind, the game itself includes robust official systems: all characters unlocked)
The only safe use of a third-party Victory Road save file is if you have already completed the game on a different console (e.g., you beat the game on Switch and want to replay the story on PS5 with all characters unlocked). Even then, cross-save support is limited.