就是为了增加晓组织神秘感的角色

之前的设定应该是大范围侦查+通过吃人可以变化形态或者得到技能？因为抓捕我爱罗的时候，分身shi体让绝去处理吃掉了

之前讲到晓组织每个人的目的时提到绝是出于跟土地有关，估计早期有跟这个相关的设定，设定为草隐村叛忍也说不定

2015年10月《少年Jump》播客：纽约动漫展岸本齐史访谈
少年JUMP推特问答
采访者：
“你是在故事的哪个阶段想到辉夜姬和六道仙人的？”
岸本：
嗯，应该说是在……嗯，或许更准确地说：在连载的后半段。
其实，我得更正一下。辉夜姬是在故事的后半段，或者至少是在连载的后半段……至于六道仙人……至少六道仙人的概念从自来也篇就出现了，所以应该说是在中期。
SHŌNEN JUMP twitter feed questions
Interviewer:
"At what point in the story did you think of Kaguya and the Sage of the Six Paths?"
Kishimoto:
So I would say it was towards... well, maybe it's better to say: well into the second half of the series.
Actually, I'll correct myself. Kaguya was towards the end, or at least well into the series... In terms of the So6P... At least the concept for the So6P existed from the Jiraiya arc, so more towards the middle.

2015年10月——动漫新闻网采访/纽约动漫
克里斯托弗·布彻：
你有没有想过《火影忍者》会连载这么久？72卷，这真是个了不起的成就。
岸本齐史：
其实我从来没想过。事实上，我甚至想过它会在第十周之后就完结。（笑）这在《周刊少年Jump》上其实很常见，如果粉丝反响不好，第十集就完结了。
克里斯托弗·布彻：
幸好我们都看到了72卷！
（观众欢呼）
克里斯托弗·布彻：
《火影忍者》出了72卷。少年Jump的编辑们希望你继续画下去吗？少年Jump的一些连载作品有100卷甚至200卷。编辑们希望你继续画《火影忍者》吗？
岸本齐史：
如果我说没有来自管理层或那些有权有势的人的压力，那我就撒谎了。但我对故事的结局已经有了非常清晰的想法，所以我不得不坚持说：“不，对不起，到此为止了。”
克里斯托弗·布彻：
在2006年你为美国版《少年Jump》杂志接受的首次英文采访中，你说过你已经完美地构思好了《火影忍者》的结局，包括分镜、文字和场景。那是2006年。将近十年后，你是否能够完全按照你想象的方式完成结局？
岸本齐史：
实际上，这一切都只是我脑海中的想法。我其实设想过鸣人和佐助会在终结之谷，在初代火影和斑的雕像旁，唱起和解之歌。我真的把这一切都想象出来了。
Christopher Butcher:
Did you ever imagine that Naruto would go on for as long as it did? 72 volumes, that's an incredible accomplishment.
Masashi Kishimoto:
Actually, I like never imagined it. In fact, I actually thought it might get canned after the tenth week. (laughs) That's actually a regular occurrence at Jump, that if the fan reaction is not very good, episode ten, the end.
Christopher Butcher:
Luckily, we all got 72 volumes!
(audience cheers)
Christopher Butcher:
72 volumes of Naruto. Did the editors of Shonen Jump want you to keep going? Some of the Shonen Jump series go for a hundred volumes or two hundred volumes. Did the editors want you to keep going on Naruto?
Masashi Kishimoto:
I would be lying if I said there wasn't some pressure from management, the powers that be as they were, but I had a pretty clear idea of how I wanted the story to come to a close, so I had to put my foot down and say, 'No, I'm sorry, this is it.'
Christopher Butcher:
In your very first English-language interview in 2006 for Shonen Jump Magazine's US edition, you said you had the ending for Naruto perfectly visualized, the layout, the text, the scenes. That was in 2006. Almost ten years later, were you able to execute the ending exactly like you imagined it would be?
Masashi Kishimoto:
Actually, it really was all in my head. I actually had envisioned that Naruto and Sasuke would make the song of reconciliation in the valley of endings by the statues of First Hokage and Madara. I actually had visualized all that.

我觉得就是中途改想法了吃书
https://tieba.baidu.com/p/9957293201?share=9105&fr=sharewise&see_lz=0&share_from=post&sfc=copy&client_type=2&client_version=12.81.0.1&st=1764756506&is_video=false&unique=85141EF49213ECD2F387C77081261D49

这个是改了设定最多的，本来是捕蝇草的形象，后期根本没这回事了