I'm looking for a long system novel. I don't want it to be a short one. The content is exciting.

A system novel was a story in which the protagonist obtained abilities through a certain system and started an adventure in a world filled with various systems and programs. These novels often had a high degree of freedom and contained various fantasy elements such as magic, machinery, technology, etc. The following are some of the long system novels recommended by the system. They are all very interesting: 1 < Full Time Expert >-Butterfly Blue This was a novel with a game as the theme. The protagonist was a retired professional player who obtained various skills through the game system and started his adventure in this competitive world. 2. Battle Through the Heavens-Heavenly Silkworm Potato This was a novel with the theme of cultivation. The main character was a young man named Xiao Yan, who had obtained a powerful ability by practicing a special Qi Method and began his adventure in this world filled with magic and Dou Qi. 3. The Great Dominator-Heavenly Silkworm Potato This was a novel with a fantasy theme. The main character was a young man named Mu Chen, who had obtained powerful abilities through practicing a special cultivation technique. He then began his adventure in this world filled with magic, spiritual energy, machinery, and other elements. 4. Douluo Continent-Tang Family's Third Young Master This was a novel with a fantasy theme. The main character was a young man named Tang Wulin who had obtained powerful abilities through cultivating special soul power. He then embarked on an adventure in a world filled with soul masters, soul beasts, soul rings, and other elements. 5. Douluo Continent 2: Legend of the Dragon King-Third Young Master of the Tang Family This was the son of the main character Tang Wulin in the sequel to Douluo Continent. Tang Wulin had obtained powerful abilities through cultivating special soul power and had embarked on an adventure in this world filled with soul masters, soul beasts, soul rings, and other elements.