I recommend "Wild Lucky God" and "Live in the Wild and Become Strong" to you! The protagonists of these two books had transmigrated to another world and obtained the luck system, and their luck value was especially high! In "Wild Luck," Ye Tian had survived a plane crash and obtained the Deity System, while the main character of "Live in the Wild and Become Stronger", Xu Yi, had obtained the Survival System, which allowed him to receive all sorts of high-tech gift bags by logging in every day. They worked hard to survive and grow in the Otherworld, and they used the power of the system to become stronger and reach the peak of their lives. I hope you like my recommendation. Muah ~