I Am a Black Flag in the World of Immortality

Wu Ji traveled to the world of cultivating immortals. The immortal cultivators here are willing to move mountains and fill seas at every turn. The lives of mortals here are like nothing, and gods are often sacrificed to monsters for their blood. What's even worse is that, as an incomparable spirit, he cannot cultivate immortality and cannot control his own destiny. Whether he will become a sacrifice and eat blood depends on luck. However, Wu Ji was not lucky. As soon as he woke up from time traveling, he found that he had been selected as a sacrifice to the River God for the River God Festival three days later... Fortunately, Wu Ji is bound to the Black Flag system and can gain great strength by practicing his skills! "Ding dong! If you practice scooping rice with a spoon once, your proficiency will be +1 and you will reach the beginner's level. Your current proficiency level is 1/10 and you can scoop rice by yourself." "..." "Ding dong! If you practice scooping rice with a spoon 100 times, your proficiency will be +100, and you will reach the stage of entering a room. At the current proficiency level (100/1000), you can use a spoon to plan rice!" "..." "Dingdong, you have practiced using a spoon to chop rice a hundred thousand times, and you have reached the state of returning to nature. Your skills are currently at full level. You can redefine the container, and you can chop everything in the world!" Seeing his return to his original skills, Wu Ji no longer feared the waves of immortals in front of him. "Are you very good at cultivating immortals? Sorry, I practice law!" PS1: Two updates a day, stable at 4,000. PS2: This book is also called "I am a black flag in the world of cultivating immortals" and "I use the rules to open up a martial arts path if I fail to cultivate immortals"