I Was Reborn and Got Eight Systems at the Beginning

He Yang was reborn, starting with eight major systems Motor system, digestive system, circulatory system, urinary system, nervous system, endocrine system, reproductive system I thought I could dominate the other world with these systems, but I was told that these were just the most basic survival configurations? What's worse is that He Yang's body has been judged as an "F-level consumable", and even breathing consumes energy points. In order to survive, he had to "rent" his system functions to residents of other worlds—— "What? Your digestive system breaks down toxins? Rent!" "The reaction speed of his nervous system is incredible? I'm worried about it!" Until that day, a supreme being from another world found He Yang, pointed at his reproductive system and asked quietly: "Can this... Be rented too?"