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Have a Fruit Vendor sell you the rarest Zoan type Devil Fruit in the world(Akuma625)

You know that if there was any hope for you to survive in this universe full of irrationally strong, unpredictable people. You are going to need some serious powers. If the rule book dose what was written in the note your life here could actually be extremely dangerous yet will never be dull due to the neverending adventures you would find. You decide to first test the notebook to see if it actually worked.

New Rule: A fruit vendor will walk in and offer to sell the owner of the Rulebook a fruit he does not realize is the extremely rare Tatsu Tatsu no Mi, Model: Shenlong Dragon Devil Fruit.

Not really expecting anything to happen you are surprised when a man wearing a turban wrap approaches you. "Kind sir would you care to see my wares?" The man asked after introducing himself as a traveling fruit vendor. You suddenly realize that as a new arrival in this universe you do not have any money that the vendor would accept. However with the Rulebook at your disposal you have nothing to fear.

Old Rule: Experienced Vendors and other salespeople can recognize an honorable person at a glance and will be willing to sell their goods on credit knowing they will be paid in a timely manner.

Admitting that you do not have any money with you at the moment the vendor waves his hand casually. "Do not worry I can see that you are a man of honor." The man said. "I know you will hunt me down to the ends of the Grand Line itself just to give me the money you owe me." That being said he allows me to browse his goods.

You immediately notice the Devil Fruit you created and pick it. "They'll be 500 Berries." The merchant said scribbling down a note in his account book for the purchase before handing the Devil Fruit over and leaving. As you look at the strangely shaped pineapple-like fruit you suddenly remember that Devil Fruits were extremely expensive. Deciding to do the honorable thing you make a mental note to pay the man 500,000,000,000 Berries for such a rare fruit.