Naruto,Sasuke and Sakura.

Naruto
was born on October 10, but not much is known beyond that. His
parentage remains a mystery, as do any other family ties he may have
had. As an infant, the nine-tailed demon fox, which had attacked the
village of Konoha, was sealed within Naruto's body by the Fourth Hokage
of Konoha.In spite of the Fourth Hokage's wish that Naruto be seen as a
hero who contained the demon, the villagers of Konoha harbored a fierce
hatred for the young child, since he bore the spirit of the demon who
decimated their once peaceful village. He was shunned by his fellow
villagers and their children, his classmates, leaving Naruto a confused
and lonely child.




One
good friend to him though lies with his ninja instructor Iruka Umino,
although his parents were killed by the nine-tailed demon fox, he holds
no grudges towards Naruto, but is Naruto's greatest inspiration. Before
graduating from the Academy, Naruto was craving for acknowledgement. He
would play pranks all around the village in an attempt to be recognized
by its inhabitants and is one of the reasons why he wants to be Hokage
so he will be noticed and respected. Naruto's normal chakra level is
considered high for a ninja of his level, partially because of the
demon fox. Even without directly drawing upon it, a small amount of the
demon fox's chakra is always mixed with his own.

His body
instinctively rejects the bulk of it due to the damage it would cause.
Ebisu implies that Naruto's poor chakra control stems from this, as a
portion of his chakra is used to reject the overwhelming fox chakra.
According to Kakashi, Naruto's regular chakra level is about double
that of Kakashi's own. As such, he is naturally suited to jutsu that
use a large amount of chakra, such as his signature jutsu: Shadow Clone
Technique. While most ninja are only capable of creating a few clones
safely, due to the jutsu's hazard of equally dividing the user's chakra
among the clones, Naruto is able to create upwards of two thousand
while maintaining a decent supply of chakra in each one.

Sasuke Uchiha.





A
Genin level ninja, Sasuke is the natural genius offspring of the once
powerful Uchiha clan. The second son of a Konohagakure police captain,
Sasuke grew up in the shadow of his older brother, Itachi. Itachi was
an acknowledged prodigy who graduated at the top of his Academy class
at age 7, mastered the Sharingan by age 8, became a Chunin at age 10,
and an ANBU squad leader at the age of 13. As a result, the Uchiha clan
took great pride and interest in Itachi and viewed him as a genius
whose work would further strengthen the bonds between the village and
the clan. In particular, Sasuke's father took an active interest in
Itachi. Itachi, on the other hand, was rather ambivalent and full of
oddly conflicting undercurrents, acknowledging Sasuke by taking
interest in his progress as a ninja when even their father did not, but
spending little quality time with Sasuke.





Even
after Sasuke enrolled in the Ninja Academy, he still was unable to
escape Itachi's shadow. Despite consistently scoring at the head of
every class, Sasuke failed to receive any recognition from his father,
who defined Sasuke's success only in terms of his older brother. Itachi
acknowledged the rivalry Sasuke felt, telling him, "We are unique
siblings. I am the barrier you must overcome, so you and I will
continue to exist together." Now Sasuke has pledged to 'kill a certain
someone', in other words, Itachi.

Sakura Haruno



In
the beginning of the series, Sakura is a Genin-level student of Kakashi
Hatake's. Initially, Sakura's stamina and overall talent were quite
below average, having had only used a few skills over the course of the
series, the most advanced of which is dispelling genjutsu. Sakura's
main strengths are her intelligence and her great chakra control. She
was able to climb trees using her chakra on her first try while it took
several days of constant training for Sasuke and Naruto to manage it.
Inside Sakura resides the "Inner Sakura" and seems to represent an
assertive part of her personality. Sakura's typical gentle responses
are juxtaposed with the Inner Sakura's constant "Shannaro". The phrase
has no literal meaning, but is usually translated as "Hell yeah", "Hell
no", or "Damn it", depending on the situation (in English, it's
translated as an angry and forceful "Cha!"). Inner Sakura is often
attributed to being Sakura's defining ability, aside from her chakra
control. Inner Sakura actually exists as a separate spirit within
Sakura, which came in handy during her battle with Ino.



When
Ino hit Sakura with her Mind Body Switch Technique, she only suppressed
the regular Sakura. As such, Inner Sakura, after a little prodding by
Naruto, was able to emerge and force Ino to leave. Ino's lack of chakra
also helped Sakura to resist. After this point, Inner Sakura only
appears once in episode 197 of the anime, when Sakura fails to notice
that a smoke bomb was set off the night before, and once in chapter 250
of the manga, when Naruto tries to refuse a mission assigned by
Tsunade. Sakura, however, does occasionally exhibit traits that would
have originally have been confined to Inner Sakura, though they are
rarely seen (they become more frequent after the timeskip, a sign that
Sakura is becoming more comfortable with herself and is showing her
true nature more often).