Seven Zeros

He has red skin, small horns on the top of his head, and a demonic tail. If 007n7 remains a hacker, then Coolid will follow in his footsteps, if not, he will grow up to be an almost ordinary child, although at the age of 10-11, Seven will mistakenly entrust Kid with a hacker panel as a toy and he will burn down a pizzeria.
(I don't know what to add again)

Her skin is fair, with a slightly cool tint. Her posture isn't very upright, as she spends most of her time sitting at the computer.

Hair: Tousled, medium-length, dirty ash-blond hair with a slight olive undertone, styled in a choppy cascade. Two dark red horns protrude from the hair. A toy burger with a yellow circle on top sits on top of her head; it's actually Nubby the spider.

Clothing and accessories: He wears delicate pink glasses with thin frames. He has a spiked choker around his neck. He wears a loose, dark gray T-shirt with a meme cat print on the chest. He wears two massive black belts with large rectangular buckles and silver studs on his hips, worn over dark brown loose pants. He also has a dark red demon tail.
He's a professional hacker, he behaves arrogantly and boorishly, he often doesn't sleep at night, and his posture isn't the best due to constantly sitting at the computer 24/7 (I repeat), he lives on energy drinks, fast food, chips, and the like, but he still remains in perfect shape.

The skin is dark. The face is a theatrical mask: the left half is white with a wide black smile and a purple spiral pattern on the cheek; the right half is open, revealing the face.

Hair: Long, white with a slight pale purple tint, tangled dreadlocks falling below the shoulders. The strands are of varying lengths, some of which hang over the face, creating a jagged, asymmetrical fringe. The hair has a casual, even slightly dirty, appearance. Several thin braids with small metal beads fall down the sides.

Clothing: Wears a voluminous, dirty-purple hood pulled over his head (to create a shadow). Under the hood is a baggy black hoodie. On his chest, beneath the hoodie, is a white scar in the shape of a void star. His hands are covered by black gloves and sleeves. He wears a wide, black leather belt with two rows of metal studs and a massive rectangular metal buckle. He wears dark pants with additional straps on the hips.
He's often calm, not like 007n7, but when it comes to hacking with a friend, he's unstoppable, laughing like a horse, okay, I don't know what else to add.

Noli is reserved and taciturn, but he's at ease with 007n7. Noli wears a mask on his face (he always wears it), likes the color purple (headcanon), and speaks English quite well. He's a programmer, a hacker, but not a malicious one.
He hides his face and body under a hood and a mask.

007n7 is cold-blooded and ruthless, but with zero, he's neutral and a little kind. He wears a T-shirt with a cat, black pants, and a black bracelet with a red stripe still visible. He also has a Nooby spider burger on his head. He's completely clueless about English and sometimes skips class.
+hacker +knows about programming