Stars and Bad Guys in College!

Color:
17 years old, second year, height 161
He is shy, kind, modest, generally calm, but easily loses his temper, anger, and irritation.
Appearance: Skeleton. The right side of his skull is missing, and his right eye is missing a multicolored flame that tells you what mood he's in. His eyes also match the color of the flame. He's wearing a wrinkled gray T-shirt, black shorts with white stripes, pink socks with Kuromi, and gray sneakers.
He loves and watches anime, which is why he has the nickname "Anime Man." Although his name is Color, for some reason he is more often called Sasha/Sanya.
a strange relationship with a killer, like friends, like a relationship, no one knows for sure except this couple.
lives in a dormitory. Room 101 (first floor and room)
He's generally an excellent student, and during any tests, he immediately gets the hang of it, although he rarely shows up in class.
the most unpopular among all the other skeletons

[the author - it's purely from me, just why not?]

Basic information about the college and the surrounding area:
The college itself is a two-story building with an exit to the roof (someone skips classes there sometimes). Next to the college is a dormitory, a separate five-story building, with about 10 rooms on each floor.
There is a cafe opposite the college.

The students themselves study for 4-5 years, depending on the specialty.

Dream:
19 years old, fourth year, in the same group with Nightmare, height 168, founded the team Stars
Kind, positive, cheerful, responsive, brings goodness
Unlike his brother Nightmare, he is not dependent on Positive as he is on Negative.
Appearance: skeleton. Yellow eyes. He is dressed in a white shirt and a muted yellow top, black pants and white boots.
He doesn't live in a dorm because he lives near the college.

Inc:
17 years old, second year, height 153 cm
He's terribly forgetful, literally forgetting what he just said. He can vomit ink when overwhelmed by strong emotions or their excess. He has a contradictory character and changes frequently.
Appearance: Skeleton. He has a black ink stain under his right eye, and his eye color changes depending on his current emotions. He wears a white T-shirt, brown pants, a blue sweater tied at the waist, and blue shoes. He carries a bag with a notebook in it, where he writes down everything so he doesn't forget and draws there. He also has paints in the bag (the paints are antidepressants, only diluted with water and tinted with food coloring), which he drinks; it's unknown where they come from or who gives them to him. In bad moments, when depression returns, he stays in his room without leaving; so far, no one except Blue and Dream has seen him in this state.
lives with Blue, room 309 (third floor, ninth room)

Blue
17 years old, second year, in the same group with Ink and Horror, height 164
Kind, sympathetic, sweet, purposeful, shy, does not like excessive attention, so tries to avoid crowds
Appearance: skeleton. Blue eyes. He is dressed in a white T-shirt, a gray sweater, dark blue pants, and boots.
He doesn't like bad guys. He knew Dust a long time ago, and was even friends with him.
lives with Ink. Room 309 (third floor, ninth room)

Nightmare:
20 years old, fourth year, the oldest and founder of the Bad Guys team, height 176
Cold, aloof, likes to bring pain and humiliation to others, doesn't like but isn't against attention.
Dream's brother, hates him.
Appearance: Black skeleton. Missing right eye, left birch-colored. Black jacket, black trousers, and black boots. Four tentacles emerge from his back, which he can use as extra arms or weapons.
lives in a dormitory, room 503 (fifth floor, third room)

Killer:
17 years old, third year, height 168
Kind, sociable, cheerful, but at the same time rude, cold and evil
Appearance: skeleton. A liquid "hatred" flows from his eyes. Eye color: white, with black whites. He wears a black T-shirt, white shorts with a black stripe on the sides, and blue shoes. His soul is in front of his chest, in the form of a target (two circles and a circle in the middle).
Lives in a dorm with Cross. Room 305 (third floor, fifth room)
often skips classes and basically goes to other classrooms, and surprisingly
He knows everything about his topic very well.

Dust / Murder:
18 years old, third year, height 175
Aloof, cold, distrustful, a little crazy and unpredictable. Prefers to be alone.
Appearance: Skeleton. The right one is red, and the left one has a red edge and blue in the middle. He wears a white T-shirt, a gray-blue sweatshirt with a gray hood, black pants, and black boots.
For everyone he is Dust, but his real name is Murder.
By the way, he smokes.
I know Blue, I was friends with him once.
lives in a dormitory, room 206 (second floor, sixth room)

Horror:
17 years old, second year, height 178
Kind, good, responsive, always helps
Appearance: A skeleton, thinner and more slender than the others. There's a hole in the skull between the back of the head and the top on the left. He only has a left eye, which is red. He's wearing a gray sweater, black pants, and black boots.
He is often hungry, despite this, he always gives his food to another
lives in a dormitory, room 102 (first floor, second room)

Error:
18 years old, second year in the same group with Cross, height between 165-170
He is shy, a little aggressive, an introvert, doesn't like being touched, and doesn't like large crowds of people.
Appearance: Black skeleton. The whites of his eyes are red, the left one is pure white, and the right eye has a blue pupil and a yellow iris. Blue stripes run from under his eyes to the end of his face. He wears a red T-shirt, a black sweater, long black shorts, and black slippers. Due to his nearsightedness, he wears glasses with round, red frames.
lives in a dormitory, room 404 (fourth floor, fourth room)

Cross:
17 years old, second year, in the same group as Error. Height 170 cm.
He is an introvert, aggressive, distrustful, withdrawn, and has a hard time opening up. He likes to be alone and doesn't like large crowds.
Appearance: skeleton. The whites of his eyes are black, the left one is red, the right one is white, and there is a lightning-shaped scar under his left eye. He wears a dark purple hoodie, black pants, and white sneakers.
By the way, he knows how to fight well
lives in a dormitory, room 305 (third floor, fifth room)