Savita was a villain in the third season of The Flash. He called himself the God of Speed or the God of Speed. Savita was originally a pilot in Eastern Europe during the Cold War. He was struck by lightning during a flight test and gained the ability to fly at super speed. He believed that he was chosen by God, so he changed his name to Savita and became obsessed with speed. Through studying and exploring, he gradually grasped the mysteries of the God Speed Force. Savita's obsession with speed attracted a large number of followers and he became the leader of a cult. His abilities included moving at the speed of light and absorbing the kinetic energy of objects. Savita's goal in the movie was to punish the Flash. He planned to kill the Flash's lover and make the Flash sad and miserable. Savita was a mysterious and powerful villain. His identity and abilities were fascinating.
In the novel, the Gambling God's 150 hand speed referred to the speed at which players could quickly place bets in the casino. It usually referred to the speed of sign language rather than the speed at which computer programs performed certain operations. In the novel, the God of Gamblers had super fast hand speed and could complete all kinds of complicated betting operations in a very short time to win the casino.
In reality, the speed of sign language wasn't a measure of the speed of a computer program. The execution speed of a computer program usually depends on its design and implementation, as well as the usage of computer hardware resources. Therefore, even though the story of the God of Gamblers '150 hand speed was fictional, the concept of hand speed was real.
A simple Nezuko and Zenitsu fanfiction could be that they go on a journey together. Along the way, they encounter other demon slayers who are initially skeptical of Nezuko. But Zenitsu stands up for her, explaining that she's different. This shows the depth of their friendship and how Zenitsu has come to trust Nezuko completely.
One common theme is self - discovery. Since Zenitsu has a complex personality, many fanfics focus on him finding out more about himself, his powers, and his place in the world. Another theme is friendship. He often forms strong bonds with other characters in fanfics, like Tanjiro and Inosuke.