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.
The 26th and 27th episodes of the second season of Celebration of the Year were the series of the TV series. In the 26th episode, Fan Xian blocked the Qing Emperor's mouth so that he could not go back on his word. Wu Zhu seemed to want to take Fan Ruoruo as a disciple. In the 27th episode, Fan Xian fell into the Second Prince's dangerous situation. The Second Prince tried to force Fan Xian to lower his head by threatening his relatives and friends. However, the details and development of the plot still needed to be understood by watching the series.
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.
In the manga, Sukuna does acquire all his fingers over the course of the story. This is a significant plot development that has major implications for the storyline and character dynamics.