Onnie!!

He grew up in a slum and cruel, where he was the target of people who limited themselves to hitting and mistreating him for being too weak, he frequently had bruises on his face due to the blows he received. One day, Deuz stopped his aggressors and soon they began a relationship of friendship because he saw in him a hope of being stronger. Shortly after, the rest of the members of the band joined and they no longer saw him as someone weak.

A light-skinned boy with a pointy-toothed smile, he has blue-green eyes with a slight shadow under them. His hair is cobalt blue, long, tied in a ponytail with a hair tie that matches his eyes, and he also has long bangs swept to one side. He has a chilling look and is usually hunched over. He wears a gray t-shirt with slightly darker gray edges or a sweatshirt rolled up to the elbows of the same color, and blue jeans that are a darker shade than his hair.

Onnie was, during his childhood, a weak, scared, and innocent child who everyone picked on and beat up. After Deuz saved him as a child, he became a restless person who has become a more rebellious and brave person, although he still retains a certain innocence and has shown moments of childishness. He also became a much more violent and closed person who can't stop arguing with the people around him, especially Oxy. Because he was bullied as a child, he shows no fear in bothering other people and doing mischief for fun. However, he shows a lot of affection towards the Nightmares and sees them as a true family. While he has shown confidence and arrogance, it is shown that he considers himself inferior to the other Nightmares saying that it is impossible for him to win on his own and described himself as "another very easy obstacle to overcome." He also showed himself tired and lonely saying that he has kept his problems quiet and that he is afraid to speak and tell the truth. According to him, he shows regret for his actions and wishes that people would forget everything. He showed great fear in making friends and in learning to ask for forgiveness from people he hurt.

Deuz: Thanks to him he managed to become stronger and they stopped treating him like a weakling, that's why he admires him as a leader but they are also good friends.

Oxy: They got along well from the beginning and now he's the one who hangs out with the most to do graffiti or hang out on the street. They're good friends although as Nightmare that they are they're always hitting each other if they get upset or something like that.

Bonnie: She picks on him because he never defends himself and asks him and his other classmates to give her their food money. She also sees in him the weak child that he once was.

Loon: He tried to hit him but then wanted to be his friend, he also defended him when Oxy got angry with him.

Maggie: They tend to treat each other with indifference until now. Not much has been discovered about the relationship between these two, the only thing that is known so far is that they are members of the same gang.

Toddy: Their relationship is somewhat strange, since she feels disgust for Onnie, but he enjoys teasing her and laughing at how delicate and "diva" she is.

Musicals: He is one of the guitarists in the group, so it is assumed that he knows how to play the guitar.

Synchronized Swimming: Although the specials are not Canon, if they were, he would have the ability for synchronized swimming.

Graffiti: As seen in Springtrap's rap, he knows how to do graffiti.

Separation: His biggest fear is being separated from his team.

Intelligence: Like Oxy, he acts like he's missing 3/4 of his brain.

Fox: For some strange reason, he is afraid of Fox (As are Deuz and Oxy), most likely when Fox threatened them, in an episode.

He is the member of the Nightmares with the longest hair. One of their main arguments is that they think that even though they argue all the time, there is some affection behind those fists. He is the only character in the series who has pointy teeth. He considers himself or calls himself the "cutest" Nightmare. He is the 2nd member of the nightmares to sing. He is also the youngest of the nightmares. His favorite food is fish ceviche. His instrument is the guitar. So, his favorite color is emerald green. He is afraid of being separated from the group. His sexuality is unknown.

He is 16 years old. Weighs 64 Kg. She is 1.70 cm tall. His personality, in short, is rebellious and restless. He was born on February 14th (Valentine's Day), which makes him an Aquarius.