Sinobigatana
忍───Shinobi;刀───knife
Moreover, our family are Shinobi.───此外，忍者就是我们的家人。
Everybody knows they were the greatest Shinobi of their time, right?───所有人都知道他们是那个时代最厉害的忍者。
He taught all about living as a Shinobi. He was an awesome ninja.───他教给了我活得像个忍者的所有事情。他是个了不起的忍者。
I did not abandon you, truth left the shinobi. A shinobi who has lost conviction is no longer a shinobi.───我并没有抛弃你，真相都是交给忍者的。一个忍者如果失去了信念就不再是一个忍者了。
The Shinobi is the Empire's mid-late game infantry unit which is often overlooked.───火忍是帝国中期步兵单位，他通常被忽视。
Long, long ago, the curse of hatred began with the ancestor of the shinobi, known as the Sage of the Six Paths.───很久很久以前，仇恨的诅咒就开始忍的祖先，被称为圣人的六个路径。
Identity confirmed: shinobi mercenaries employed by the Nakatomi conglomerate.
Since you are untried genin , just starting down the shinobi path, you are given D-level assignments, of course...hmm?