I'm not entirely sure as 'anime finger story' is a rather ambiguous term. It could potentially be a story told using the fingers in an anime - like style of animation or performance. Maybe it involves characters created with fingers and some kind of plot unfolds with their movements.
There could be many creators of 'anime finger story'. It might be independent animators who are experimenting with new forms of storytelling. They could be inspired by the unique aspects of anime and find a creative way to incorporate fingers into their stories.
Sukuna does die in the manga. The way it happens is quite dramatic and ties in with many other elements of the story, adding depth and tension to the overall narrative.
No. Ryomen Sukuna is a fictional character from Japanese mythology and modern manga/anime. He doesn't have a basis in a true historical event or person.
Nope. Ryomen Sukuna has no basis in reality. It's a product of the creative minds of the writers and illustrators who designed a captivating fictional character for the enjoyment of the audience.
In the manga, Sukuna doesn't possess all 20 fingers. There are specific story arcs and events where his finger count changes based on the plot developments.