Harry Potter World with a Simulation Choice System

(Protagonist is not harry potter) (I do not own harry potter) An old assassin has transmigrated into the world of harry potter and reborn in a wizard family of pure bloodlines. His family was whipped out and is currently living with Mrs. Zabini family. There are no siblings and the protagonist being the only son. His mother is a close friend of Mrs. Zabini. So he and his family assets were in the hands of Mrs. Zabini as the guardian. Unlike with others she took care of Vicky Dekciw from Dekciw family (The family name is a puzzle if you can find the answer to it) On his 5th birthday something unexpected happened Tring “Wizard choice system is activated.” System: host don’t worry even though you are weak, I will help you become greatest wizard in this world. Protagonist: (I am not weak, I am only 5 year old here you know) System: host don’t worry the there are various choices and quests to get the rewards and these rewards can make you the greatest wizard in the world. Protagonist: (did you listen what I just said) System: there is also the plot of the harry potter story that host has to take care of which can give you better rewards. There are also achievements rewards and the story beyond the plot of the harry potter story……….. (Will not travel to other dimensions only harry potter world and many features that should be in an actual wizard adventurer’s world like dungeons…..)