Persona 5 Royal Save Story editor

So long story short I got into a fight with my family and they threw away my pc with my 100 hours of persona 5 royal gameplay save on it and since I downloaded the game off steam rip I lost all my data and now I just bought the game on steam and now I got no data I was just wondering if there was a way to edit my save story wise btw I was at the part right after akechi thought he killed joker