Many system novels would involve the female protagonist's exchange, summoning, and lottery. These elements could usually increase the interest and plot development of the novel. The female protagonist's exchange was usually an important plot in the novel. The female protagonist could obtain all kinds of powerful equipment and skills through the exchange system to improve her strength and win in battle. The summoning system was a common element in novels. The female protagonist could summon all kinds of powerful creatures or magical elements to assist her in battle and increase her strength. Lottery was a common plot in novels where the female protagonist could participate in various lottery activities to obtain precious equipment and items to increase her strength. These elements usually appeared in system novels where the female protagonist obtained powerful abilities and resources through the system, thus displaying amazing strength in the novel.