This OC is by khemmichealblack. I hope you like it.
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// Basic Info //

Full Name: Ayato Chikyū

Nice.

Nickname/s:  Chikyū Swordsmen, The Least Strongest Mist Swordsmen

Oh nice nickname. At least he is known as a strong swordsman.

Alias/s: Chikyū 

Cool

Title/s: Ayato of the Isōrō Blade

That's a cool sounding title for him.

Age: 16

Nice

Gender: male

Cool

Rank: chuunin

Oh nice

SO: Straight

Cool

Birth Village: Land of Tea

Oh I have yet to have a ninja birthed In another area like this.

Current Village: Mist

Cool

Affiliation/s: Chikyū Clan

Oh nice, i can't wait to see what's in stored for this OC clan.

Occupation/s: Shinobi 

Nice.

Status: Alive

Cool

Family/Clan: Chikyū

Nice.

// Appearance & Character // 

Height: 5’3”

Weight: 120lbs

Nice height to weight ratio.

Build: Mesomorph – strong athletic body type, muscular build, well-developed shoulders and slim hips Mesomorphs have a faster metabolism than other body types and can lose weight and gain muscle mass easily

Oh ok, nice detail to the build and his body of Mesomorphs.

Face Type: Round Face. he has a round face when the vertical to horizontal ratio is equal

Nice, and thanks for the visual aspect.

Eye Color/shape: Black, Close Set Eyes

Oh nice, so you can't see his eyes. That's different and new for a OC.

Hair Color: Black

Great and common.

Hair Style: His hair is long on top and put into a small pony tail and short on the sides.

A very easy style to imagine. Great job.

Skin Color: Pale

Cool

Skin Texture: olive or light brown

Ok

Appearance Description: Ayato is a firm built kid who is decently endured his hair is long and is cut short at the top with the top tied into a small pony tail, 

It is a very easy appearance to imagine and is nice and simple.

Clothing Description: Ayato wears a mesh like shirt under a black gi like shirt with a sleeve torn off to show his clans symbol on his arm

Nice. Like the appearance it is very easy to imagine. Great job.

Body marks/Scars/etc: 

Personality: Ayato is a pretty straightforward person when it comes to everything besides residing with his clan, he’s not really a nice person until you actually speak to him well

Nice, his personality actually goes great with his appearance in a sense that he looks like this types of person. It is also good that you kept him in one personality group.

Good Habits: Training, Analyzing things through

Nice.

Bad Habits: sugar and Overthinking a thought out plan 

It goes great with his good habit for thinking things through because what if he over thinks. It becomes a problem. Good job.

Likes/Dislike: His family

Wait so does he like or dislike his family?

Season/s: Fall

Oh cool

Food/s: Anything edible but mainly sweets (this makes him very sporadic with his battle style in a match)

Oh ok,

Colors: Blue

Cool

Time of Day: Night

Nice

Climate: Fresh (not too cold but not too warm)

Oh so more of a spring like atmosphere.

General Likes: His family

Oh so he does like his family. Nice

General Dislikes: he dislikes being talked down to, he might not be able to do as other but that does not mean it’s good to bad mouth him

Oh so he has a short temper to that kind of stuff? That's cool, it goes with his personality and adds character.

Hobbies: Ayato is really addicted to reading things like Art of War to learn things about analyzing 

Oh ok, so his hobbies go with his habits. Nice.

Passion/s: Analyzing everything

Nice

Inspiration/s: N/A

That's ok

History: Ayato was raised in the mist village. He had both parents growing up and didn’t really have much struggles in his life. His clan had always been peaceful for Shinobi, he had always admired the seven most swordsmen as they were the most feared of the mist. he began to grow with his clan members as he got older he was given the blade after he chose to be a Shinobi as a gift. After years of training and almost getting killed, the Mizukage recruited him to the swordsmen. He was still training when he was inducted so he was the weakest swordsmen

Oh so he is different in the sense that he has a normal childhood. It is also good that because he is still in training that he is the weakest swordsman.

( Family information & Friends )
= Direct Family =
Father: N/A
Mother: N/A
Siblings: N/A

That's ok.

Other Important relatives: 

Friends: Hitomi Chikyū, Ryota Chikyū
Close People: N/A
Love Interest/s: 
Teachers: N/A
Important Figures: N/A

Oh ok.

Allies: Hitomi and Ryota 
Rivals: N/A
Enemies: 
Goal/s: To be a strong chikyū clan member
Life Motto: "If it hurts the first time try again, next time you won’t cry like a bitch"
Quote/s: "I am an asshole, but I did warn you when I met you"

Nice motto and quote. It not only shows his personality but can add a comical relief to his character.

Pets: 

[=] Combat Information [=] 

Rank: Genin

Oh ok

Classification: Combat  Nin

Oh nice.

Weapon/s: 

The blade of Mizuchi

This blade were created by the smith who made the mist swords, it’s a sword that only takes chikyū blood into it the moment of contact, the blade was said to be made of two sides of the head of Mizuchi, it bites the user and takes the blood and Coates the blade, when needed, with blood of the user but also can be stored in side the blade,  the blade is also semi sentient which mean it can tell if you’re it’s owner or not

That is a amazing and well thought out weapon. It also shows the smarts of the sword.

Isōrō is a sharp edged long blade that has a snake like head at the end of the hilt

Oh nice.

Reasoning for blades being made: The Chikyū clan had been dispatched to the Hidden Mist / Land Of Waves to take care of the situation with the the Mizukage killing people with Kekkei Genkai. The chikyū ancestors began to run security through the mist many times Chikyū members would have to fight mist jonin to protect those with Kekkei Genkai, many of times the jonin would carry with them the seven mist swords, Chikyū clan members were being killed over this so the creator of the mist swords went against the mist by crafting the chikyū a special sword to defend the people of the mist 

Oh a nice and great reason for the creation of the sword. Great job.

Tool/s: Mizuchi  blade, standard ninja tools

Nice.

Equipment: 5 large chakra pills

Oh ok

Strengths: , Kenjutsu, Ninjutsu, Battle analysis 

Oh these seems like it fits him the most.

Weaknesses: easily overthinks 

Nice

Chakra Affinity: Water

Chakra Natures: Water
Fire 

KG/KT/etc: Boil Release 

Nice, It is good to see that water and fire are the affinities.

= Jutsu =

• Secret Technique: Mist Rain (Locked)
   ° A technique known by Kirigakure hunter-nin. The user makes rain that absorbs any chakra that it comes in contact with, as long as it's not of the same signature as the original user. The effect of this technique is powerful enough to absorb Utakata's Soap Bubble Ninjutsu and Naruto's Rasengan.

Oh nice. I can see why it is locked, good job.

• Hiding in Mist Technique
   ° The Hiding in Mist Technique is a speciality of the shinobi from Kirigakure, where one causes a mist to spring forth either by using a pre-existing water source, or expelling it from their mouth. They can then go in and out of sight at will from within the pearly-white realm. The mist's thickness is controlled by the amount of chakra kneaded into it. It cannot fool the Byakugan, but, due to the mist being created with the user's chakra, any Sharingan and Rinnegan-user will see the mist coloured by their opponent's chakra — which will effectively hide the user from the dōjutsu.

Oh this seems like a very powerful jutsu. I also like how the thickness is determined by how much chakra is used/added.

Mizuame Nabara (Starch Syrup Capture Field) 
Rank: D 
Description: Suiton • Mizuame Nabara is a Ninjutsu technique utilizing the Water Element. After forming the needed handseals, Izumo will expel a sticky liquid from his gullet. This liquid can cover approximately 20 square meters. If the target runs on top of the liquid, their feet will become glued to its sticky surface. If the ninja focuses chakra to their feet before touching the surface, they can hover above and move over it without hindrance. This allows Ayato or a comrade to charge and attack without fear of becoming bogged down as well. 

Oh nice. It is a very effective jutsu and seems simple but is actually complex.

Suiton: Mizu Shuriken no Jutsu (Water Release: Water Shuriken Technique) 
Rank: D 
Description: Through the use of water manipulation, the user can create multiple small shuriken comprised of water and launch them towards the target. After hitting and/or cutting a solid surface, they revert to water. It is important to note that these shuriken can be physically launched (by hand) or launched as they are created. 

Oh ok, so the launch is very important.

Mizu Tate no Jutsu (Water Shield Technique) 
Rank: D 
Description: A shield of water is formed around the user as a cylindrical barrier that reaches just above the user's head. After the initial creation that user can manipulate the water, allowing for water spikes, tentacles, hands and the like, though these appendages are not dexterous enough to handle a weapon. The bad thing is that the shield isn't that reliable against ninjutsu. However, an opponent who is strong enough can break through the shield

Oh so it is powerful but not as strong as Gaara's sand defense. Nice.

Suimenka no Kisoku (Breathing Underwater Technique) 
Rank: D
Description: The art of breathing underwater using chakra to remove oxygen from water has been a long handed down secret of the Mist. The length of time and the depth that the diver can go under depends on the ability of the user. This technique typically activates whenever the shinobi breathes in water and requires no handseals. 

Oh so a technique that is effective but isn't for really fighting but can be. It can also keep someone alive if they are drowning. Great job.

Suiton: Hachi Shokushu (Water Release: Eight Tentacles) 
Rank: C
Description:A skill in which is used to give the user additional limbs. Gathering chakra into the water, the user can create up to eight arms upon their back that resemble the tentacles of an octopus. Approximately six feet in length, and are capable of attacking in all directions. 

Oh so this is kinda like the eight tails. It is also similar to a attack I use for my OC. Nice.

Katon: Shuriken no Jutsu (Fire Release: Shuriken Technique)
Rank: C
Description: A relatively basic katon, this one uses chakra to coat a metal shuriken or a kunai with fire. It is done so that the user first throws the shuriken, then exhales from his or her mouth a small flame that ignites the chakra-coated projectile. If the attack succeeds, not only will your opponent be hurt by the shuriken or kunai, but he will also suffer from burns. 

Oh ok, this technique uses strategy to win and to use in battle.

Katon: Bounetsu no Jutsu (Fire Release: Flame-Resistance Technique)
Rank: D
Description: This is a passive jutsu that is the first in two steps to protect the user from damaging themselves with their very own Katons. Although not necessarily mandatory to learn the finer points of the tree, it does provide a buffer against self-inflicting injuries. For example the user is able to withstand increasing amounts of heat and can even withstand certain techniques aimed at them. Withstand, however, does not translate into invulnerability 

So this is also like the water defense but only to fire moves right? It looks like a well thought out jutsu.

(Locked)
Kasumi Enbu no Jutsu (Mist Waltz Technique)
Rank: D
Description: Katon • Kasumi Enbu no Jutsu is a Ninjutsu technique utilizing the Fire Element. The ninja does a string of hand seals and then proceeds to blow a large combustible mist at the target. When the mist hits flame, it will ignite in an explosion of fire.

Quite the simple technique and Is very similar to Konohamaru's burning ash jutsu.

Fire Style: Fire Ball Jutsu
Rank: C
Description:This technique where chakra kneaded inside the body is converted into fire, and expelled from the mouth in a massive orb of roaring flame. The scope of the attack is altered by controlling the volume of chakra that is mustered. The released flames will engulf their target, and leave a crater on the ground's surface. The fireball is normally blown through a ring made by the thumb and index finger of the user. However, some users are seen doing this technique without making a ring over their mouth.

Nice and is a common jutsu.

= Abilities & Traits =
• Poisonous blood to anyone but another Chikyū
• Chakra Pool that grows with excess chakra absorbed
• Mutated DNA allows the Chikyū clan to easily adapt to fit other DNA into their own body
• Psychopathic Tendencies from Chikyū blood being inside of him

Oh nice. These are some very interesting and great traits.

Clan Info:
It all started in the feudal era of the Land of Tea, the Chikyū clan was one of the up and coming rich families and the other lords nearby didn't particularly enjoy it so one of them invited the clan over for a party. The Chikyū clan being a bunch of peace loving pacifists accepted without even thinking twice about it. That night they all got extremely sick from the poison that they ingested in their drinks and meals. The poison wasn't normal poison simply because it continued to attack them from within.

Oh so because of their peace making ways, they nearly died from the lords. Good job

So after a few years the head of the clan birthed a new son and they found that it looked nothing like any Chikyū ever born before. Most Chikyū clan members would have a sandy brown or black hair color but this child was born with white hair

Oh so because of the illness from the poison, he was born differently like a mutation. Nice

The clan also normally had no kekkei genkai but this child could manipulate his own blood, this was the start of a beautiful thing. Each child from this generation had a different shade of hair and tan and none of them looked anything like that generations prior. The also each had their own unique kekkei genkais. 

So this is how the clan officially started. The mutation changed their DNA and gave them new powers.

There had to have been something seriously wrong with their genetics of course but they came to accept it and as time went on they realized that each new generation saw more potential in their bloodline and found the full extent of their powers

Nice.
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Final Analysis- This is a very good OC and has tons of potential to add more to him. He is great the way he is and has great character to him. All the jutsus are well thought out and made greatly for the clan. The sword was also a great idea considering how the DNA got changed because of the poison. This OC is great. It was a honor to review him. Thank you for choosing me to review him.