I-Pin

I-Pin is an assassin from Hong Kong. Even though the 5-year-old I-Pin cannot speak Japanese well, the 15-year-old "Future I-Pin" eventually enters a Japanese college, and despite the fact that she is the 3rd Most Promising Young Assassin, she works part-time at a ramen restaurant in the future, though she still retains her skills. Source: Reborn Wikia