May Japanese be your gateway towards a prosperous life. Allow the ninja to be your guide of honor.
Remarks about the translation
The "you" that is being referred to is young a female that is a a friend. And the ninja is a male, dressed in a black ninjitsu suit (singular). I wish for this to be a calligraphy translation. The "" is figurative, as well as the "guide of honor". Its a poetic text.