Onnie

Deuz : Thanks to him, he became 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 start, and now he's the one he hangs out with most often to do graffiti or just hang out on the streets. They're good friends, although, being Nightmares , they're always fighting each other if they get annoyed or something.
Bonnie : She picks on him because he never stands up for himself and, along with her other classmates, demands he give her his lunch money. She also sees in him the weak child 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've generally treated each other with indifference so far. Not much has been revealed about their relationship; all that's known so far is that they're in the same gang.
Toddy : Their relationship is somewhat strange, as she feels disgust for Onnie , but he enjoys teasing her and laughing at how delicate and "diva" she is.

He also became a much more violent and withdrawn person who can't stop arguing with those around him, especially Oxy . Because he was bullied as a child, he shows no fear in bothering others and playing pranks for fun.

However, he shows great affection for the Nightmares and sees them as true family. While he has displayed confidence and arrogance. he considers himself inferior to the other Nightmares, stating that it is impossible for him to win on his own and describing himself as "another obstacle too easy to overcome."

Onnie was once a weak, timid, and innocent child who was bullied and beaten by everyone. After Deuz saved him as a child, he became a restless and rebellious person, though he still retains some innocence and has shown moments of childishness.

He's a fair-skinned boy with a sharp, toothy grin. He has blue-green eyes with a faint shadow beneath them. His long, cobalt-blue hair is tied back in a ponytail with a hair tie that matches his eyes, and he has long, side-swept bangs. His gaze is unsettling, and he's usually hunched over.

he wears a gray t-shirt with slightly darker gray trim or a sweatshirt with the sleeves rolled up to his elbows in the same color, and blue jeans in a darker shade compared to his hair.

He grew up in a marginal and cruel neighborhood, where he was the target of people who simply beat him and mistreated him for being too weak; he frequently had bruises on his face due to the blows he received.

One day, Deuz stopped his attackers, and they soon began a friendship because he saw in him a hope of becoming stronger. Soon after, the rest of the gang members joined them, and they no longer saw him as weak.

He is part of the band Los Nightmare , being the lead guitarist of said band