Nigt bladez
Coda Highland
"The man who came from Italy"?
i dont know my name in kanji
Choosing kanji for your name isn't something you should just leave to chance or to a machine. You should try to find kanji that has a meaning that you like while carrying a sound that's at least similar to your name, or you should try to find kanji that has the same meaning as your name. If you haven't spent the time to do this, you should always write your name in katakana and nothing else. It looks very, very bad for you if your name means something bad or absurd.
For instance, I've chosen the following kanji for my name: 光田高地, pronounced こうだ・たかち. It's an illustration of both ways of choosing kanji for the name.
I chose 光田 based on the sound: it can be pronounced the same as my nickname, "Coda." What makes it a good choice of kanji for a name is that it's a fairly common Japanese family name, although it's usually pronounced みつだ. (It means "field of light;" it's not particularly meaningful or impressive but it's not bad or absurd.)
I chose 高地 based on the meaning: it means "high ground" -- or, more appropriately, "high land." What makes it a good choice of kanji for a name is that it really is a boy's name in Japan.
You might notice that I switched the "first" and "last" names around -- that is, "Coda" became the family name and "Highland" became the given name. It's mostly a coincidence; I found names that matched my nickname, and it just so happened that they were backwards. I'm okay with this.
Usually you'll want to pick a name that's only one or two kanji.