S-rank

An S-Class shinobi is a ninja who has gained power and knowledge far beyond an average Jonin and have earned a legendary, or feared status. The title itself isn't an official rank and the village officially refers to them as Jonin, but thats not always the case as some would argue Naruto Uzumaki is an S-Class ninja though he is still a Genin. Some ninja who have achieved this rank sometimes leave their villages to seek their own ambitions, such as most of the members of the Akatsuki, thus becoming missing-nin and having no rank at all. All of the major ninja villages put their S-Class missing-nin in the Bingo Book, marking them for assassination for all Jonin and ANBU ninja. Most ninja however adopt a "flee on sight" policy rather than to fight one. Most Kage's tend to be S-Class, and sometimes a team of S-Class ninja would be given nicknames by their allies and enemies, such as the Sannin.