So, I did something similar to this a while back, and a lot has changed about Y/N. (In my stories, at least.) This chapter is meant to catch anyone up who is not familiar with Y/N's changes of ability, and character traits.
-Appearance-
Weapon Of Choice : Baron's Promise - A sword gifted to Y/N by Baron, the hellhound that serves as his Guardian. Baron wishes to remain at Y/N's side at all times, so he turns himself into a sword that Y/N employs in battle. It is a katana with a deep crimson blade, a Mahogany hilt, and a black handguard. On the base of the blade "Promise", is inscribed in gold.
Clothing - Y/N prefers to remain casual, and wears normal clothing most of the time.
Shinobi Transformation - Y/N's casual clothing is upgraded by adding armor plating to the arms, pants, and torso. (It can look however you want.)
-Ninja/Demon Skills-
Demon Skill 1 : Wrath of The Oni - Y/N goes berserk on a selected target, and continues to do so until one of two things happens; The enemy is defeated, or he tires himself out.
"Enough of this!"
Demon Skill 2 : Hell Knight's Redemption - Y/N summons a flaming double headed greataxe that was once wielded by his mother.
"May the hellfire burn away your sin!" (Against Evil Shinobi)
"You made me do this!" (Against Good Shinobi)
Ninja Skill : Old Fashioned Uppercut - Y/N charges at the target, digs his fist into their stomach, then launches them into the air.
Ultimate Demonic Transformation - Y/N releases his inner demon, and dons himself in the armor bestowed upon him by his mother. A hellfire beam is accompanied with his transformation, to serve as a warning.
Hell Knight Y/N
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-Character Traits-
Overwhelming Aura - Y/N's presence on the battlefield is felt by every combatant, which encourages his teammates, while making the enemy uneasy.
Demonic Undertone - Y/N's half demon genetic build make him slightly demented, which he hides well, but can sometimes slip out in subtle ways. His actions and words can sometimes mean something much more... undesirable.
Family Oriented - Y/N's big, demonic heart allows for much love to flow within. He shows his love the most with his blood family, and anyone he is close enough with to consider family as well.
Delinquent - While Y/N prefers to settle problems with argument, most individuals receive a sock to the face instead. A trait given to him by his mother.
No Nonsense - Y/N tries to be as honest as he can, but this leads him to get quite agitated when someone else doesn't return the favor.
-Heritage-
M/N - A short tempered Hell Knight who fell in love with a human Shinobi.
F/N - A well mannered, retired Shinobi who once stood at the top.
-Strange Talents/Traits-
Walking Furnace - Y/N's body heat is very high, and remains so even in cold weather conditions.
Carnivorous Cooker - Y/N is somehow able to cook meat just by holding it, but putting it in his mouth raw gets the job done faster. (Though most Shinobi refuse to eat the meat when offered.)
Blacksmith - Y/N's hobby. While he mostly keeps the details to himself, Y/N's armory is open to anyone responsible enough to enter.
Loved By Children - A trait inherited from his mother. Friendly, welcoming, and forgiving when around children.
-Personality Traits-
Y/N is friendly for the most part, but rubbing him the wrong way is a one way ticket to getting your ass kicked.
Carnivorous by nature, Y/N's libido is high, but he distracts himself from it by doing his hobby, training, among other things.
Cold to everyone he meets at first, but after breaking through the frigid ice cold barrier, you will find a squishy, half demon heart that's warm to the core.
And that's all I can think of, for right now. If I think, or remember something else that needs to be added, this chapter will be updated.
