I have already written an alternative story on the theme of WWII or Japanese History. It's about International Military Tribunal for the Far East. You can read the story at https://snowyyang.itch.io/delusions (0 - The 200-Year Grudge.txt)

I think I can make a visual novel and am looking for a graphic artist and a music composer.

I think I already found a musician, now looking for a graphic artist.

I think it goes against a jam's spirit to have material already prepared. Besides, the theme hasn't even been decided yet.