One Piece: My System Doesn't Want Me to Be Too Strong

When Lin Ye woke up, he traveled to Windmill Village, the place where red-haired Shanks broke his arm. It was bound to a system. I originally thought it was a golden finger from the sky, but the system said - [The host cannot directly obtain power, and needs to guide the original character to defeat the original enemies. Each time one is defeated, the host's power is increased to 80% of the defeated enemy's combat power] This means: if you help Luffy defeat a pirate with a 50 million bounty on his head, you will have 40 million in combat power; if you help Zoro defeat Hawkeye, you will have 80% of Hawkeye's strength. Lin Ye took a deep breath: "So I have to be a nanny?" System: [Yes, the nanny-type protagonist, commonly known as the tool man. So Lin Ye began the wonderful journey of "I taught Luffy to fight the enemies that Luffy was supposed to fight." In the East China Sea chapter, he taught Luffy to use "rubber rubber... Run first and then talk". Luffy was confused, and finally he kicked him into Captain Crick's warship; In Alabasta, he taught Princess Vivi "If you can't beat them, shake them", and then he brought the whole Straw Hat crew; On Justice Island, he directly told Luffy, "Your brother will die in the war at the top." Luffy burst into tears, and Lin Ye said, "Why are you crying? I will take you to the Navy headquarters in three months." In the Chambord Islands, Luffy punched away the Celestial Dragon. Lin Ye patted Luffy on the shoulder and said, "You're done. The Navy is going to offer you a reward of 10 billion." Luffy cried: "Brother, won't you run with me?" Lin Ye smiled slightly and took out a reward order - his own. It said "Lin Ye, a non-staff member of the Straw Hats, is offering a reward of 20 billion Baileys."