Y/N Tsugikuni
Age: 17
Height:6,0
E/C: Maroon
H/C: Black to burgundy with red highlights
Has Hanafuda earrings.
Looks:

Relatives: D/N Tsugikuni and M/N Tsugikuni
Status: Deceased

Ancestor: Yoriichi Tsugikuni

Cousin: Muichiro Tokito Status: Alive

Abilities:
Perfect swordsmanship: Ever since Y\N was little he had a attraction towards swordsmanship. His parents and the village considered him their prodigy.

Heightened Senses: Due to having the demon slayer marks his senses are all heightened. Like Tanjiro's sense of smell and Zenitsu's hearing.

Demon Slayer Marks.

Eclipse Demon slayer Mark

Appears on the Left side of his neck.
See through world: Ever since he was little Y/N could sometimes see through people seeing their bone structure and organs.

Personality: Stoic,Cold, funny and Lovable

Like: His parents,his friends, hashira(Minus Sanami) slaying demons, Lady Tamayo, His girls

Dislikes: Muzan, Uppermoons(Specifically Kokushibo) People hurting his friends and loved ones.

(I found it on google on a fan wiki site for demon slayer)
Breathing Style.
Eclipse Breathing( A Hybrid Combination of moon and sun Breathing)

First Form: Swift Ecliptic Slash
A powerful swift horizontal semi-circular slash aiming to cut off a demons head.

Second Form: Sun Palace, Thunderous Eclipse
The user appears to be constantly moving in a wave of black flames. It can be used to disorientate demons allowing the user to appear behind the demon and slash their head off.

Third Form: Dark Waves of Fury
The user strikes the air multiple times to send a wave of powerful slashes spiraling in a large radius.

Fourth Form: Umbral Slash
This move is a singular slash in any direction. More powerful when performed behind an enemy

Fifth Form: Darkness Devour
The user walks towards their enemy slowly while darkness seems to be appearing around them giving the target a false sense of safety. Once close enough the user blinds their opponent by slashing their eyes. Before repeatly stabbing the demon before slashing the head.

Sixth Form: Sunrise burning slashes
The user dashes left to right disorienting the demon before flipping at 360 degrees cutting the demon in half while simultaneously splitting them into tiny pieces.

Seventh Form: Shadow Edge
The User spins around in a chaotic storm-like pattern cutting nearby opponents to shreds.

Eight Form: Spirit Dance
The user swings their blade with such force the wind generated by the attack can be used as a extension of the users blade for longer range attacks.

Ninth Form: Deceiving Red Moon
The User appears to glow for a second before dashing and slicing the opponents head off. Easiest form to master.

Tenth Form: Shore of Life and Fire
A complex form requiring strong strings and complex footwork, The user holds the blade above their head while its coated in black flames before leaping to and fro while defending and attacking. Can be used to stun opponents.

Eleventh Form: Heat of Appearance
The most powerfull attack of Eclipse Breathing. The user appears shrouded in darkness before a wave of black and red flames strikes the opponent. After it clears a giant dark replica of the user to be mimicking the users movementsand this form combines all previous moves into one powerful one before appearing to teleport away. The user then appears behind the opponent and slashes them to shreds using an improved version of Shadow Edge. Due to the immense power of this attack the move causes heavy strain on the user.

Y/N also has mastered moon and sun breathing but barely uses them only when he needs too.

His Swords.
Eclipse Breathing

The black is red symbolizing the mix of moon and sun breathing.

His Ancestors Sword:

His Outfit.
His outfit consists of the common demon slayer uniform but with a purple Haori decorated with black and purple flames.

His Lovers
Genderbent
Tangira Kammado
Zenitsu Agatsuma
Inouske Hashibara

Kanao Tsuyuri

Spider Mom

Daki or Ume

Background: As you all now back in the Sengoku Ara their lived a man named Yoriichi Tsugikuni he lived with his Wife Uta who was pregnant at the time. When the day arrived Yoriichi left to get a midwife to help his wife but when he returned he found his wife and newborn daughter dead. But as he fell to his knees in tears he heard crying coming from his wife's body. He gently flipped her over and their was a newborn baby boy on the ground. See what Uta and Yoriichi didn't was that she was pregnant with twins. During the attack she was able to hide her son from being killed. Yoriichi decided to bring his son with him as he became a the most powerful demon slayer even known. But after Yoriichi's death his son and his family went into hiding to keep their blood line and secrets alive.

It succeeded until we make it to the present in the Taisho period where the end of the bloodline falls on Y/N as he tries to live up to his ancestors legacy.