YOU SAID:
I am the best person in this world to ever exist
INTO JAPANESE
私はこの世界でこれまでに存在した中で最高の人です
BACK INTO ENGLISH
I am the best person ever in this world
INTO JAPANESE
私はこの世界でこれまでで最高の人です
BACK INTO ENGLISH
I am the best person ever in this world
You've done this before, haven't you.