Hidden blood; PROLOGUE

Bloodlines have mysterious beginnings.

What may have originally been an oft-used jutsu by medics to see the broken bones of a patient can become a powerful doujutsu, capable of seeing anything up to a mile and a half away. The bloodline that this tale is about, as is with many others, was not a bloodline to begin with. A samurai clan called the Haoko had a deadly rivalry with a ninja clan called the Yaman. They despised the Yaman for their bloody interrogation techniques, going so far as to call them the Yaman Aku, or 'bloody' Yaman. The Yaman, in their own turn, despised the Haoko for their staunch refusal to share their interrogation techniques and the constant reviling they went through. A bloody battle between the two resulted in the near-extinction of the Haoko and a broken Yaman Aku clan.

The Yaman Aku rejoiced in destroying their enemies, but unknown to them, one mother and her child survived the battle, hidden away by a man who did not want to lose his daughter and granddaughter to the 'savages'. Their line has survived, twisting and hidden, sometimes lost, but still surviving. The trait for resistance to interrogation has become a matrilineal genetic trait, which in turn has grown stronger as the name of the Haoko has grown weaker. The line has lain hidden in men for forty years, and it is only recently that it has resurfaced in a female of the Haoko clan. But of course now, that clan is dead, the samurai history gone and forgotten. Now this gene belongs to a ninja, a once-sworn enemy. This ninja is not even part of a clan, just a first-generation kunoichi with pink hair…

One Haruno Sakura, newly appointed genin of team seven.

Author's Notes:

This is a challenge that I found here: thisgirlreads, it is called hidden blood, which is what I will be calling this story from now on…

There is a few people who has said that they wanted to write something to this story… I have checked their pages but found that non of them had actually posted anything that looked like it…
Anyways, I hope that you will like the story…