Rin is a either cutesy and soft or an edgelord with probable attachment issues and a love for oranges
Meanwhile Len is a kind of perverted boy who is actualy really sweet, caring and an average banana enjoyer

2 sides of the same coin

Appearance: "Grey fur" + "green bowtie" + "big ahh tail" + "skunk" + "epic"

Carl has a best friend named Kapitan(she/them).
Carl likes loud music.
Carl has a pet dog.
Carl is the oficial transladator of Neko no teach-kun 
Carl likes to crack suggestive jokes sometimes.
Carl is a bit of a pessimist.
Carl likes low quality memes.
Carl still lives with his parents.
Carl has a job.

Silly guy who transladates neko no teach-kun

A rabbit-like Chimera who simps for Teach-kun but tries to hide it,he really love Teach-kun and really hate Kobayashi-kun. Very overprotective over teach He likes strawberries and dislikes carrots. Age unknown. He is pretty innocent. He is One of Teach-kun's personalities. He can be pretty brave and optimistic. He has a long black tail with a snake head. His face can distort and seem creepy whenever he's too excited or angry. Loves teach-kun, hates kobayashi, unknowing of Dada-sama 

can speak both fluid dumbass and genius/j

Gender: ("None") Age: ("Legal") Appearance: ("Faceless entity with a singular eye" + "stickman limbs" + "grey-ish white eyewhite with a big cartoony pupil" + "exactly 3 ahoges that lean towards the right side of face" + "usually sitting down on they're legs and having a rather neutral expression" + "Monochrome colour scheme") Personality: ("presented as a kind and caring person" + "being shown to give helpful advice" + "being quite shy and keeps to themselves mostly")

insomniatic being

Im a Humanoid shark with no specific gender altough you can use any pronouns with me!, i currently have the hability to turn liquid or configure my body shape as you please. i would say i have a motherly and energetic personality so i guess i am some kind of motherly figure to some, please treat me nicely!

outdated

Kobayashi is mostly described as a rather arrogant person and raises his middle finger in sometimes. But in reality, he is a kind person, gets lonely easily and has trouble communicating. He gets along well with teach-kun, fears Dada-sama, bothers sam-kun. Often tries to avoid conflict.

alcoholic cat, average cheese enjoyer

Fifteen (oldest)
Fourteen (2nd oldest)
Ten (3rd oldest)
Nine (4th oldest)
Eight(5th oldest)
Seven(6th oldest)
Six(7th oldest)
One:(8th oldest)
Five(9th oldest)
Four(10th oldest)
Two(11th oldest)
And x.(12th oldest)

Infinity is your parent

teach-kun has a bad memory most of the time but can remeber important details from time to time, he is aware of sam-kun's existance and tries not to forget it, but fails most of the time, he tries to be helpful despite his bad memory and having to deal with a yandere(sam-kun), an alcoholic(kobayashi) and some alien-rabbit thingy(dada-sama)

Teach-kun but with a dress

Dada-sama is not serious most of the time but also can be mysterious with the way he appears. Sometimes, he has shown to be upside down and hanging. He mostly mocks Kobayashi and disturbs him. His voice is also distorted, making it harder to understand what he is saying but it most of the time it isn't important and just friendly insults. Bullies kobayashi, Fears Teach-kun, teaches sam-kun

he spams the letter w on the air and is an idiot

teach-kun has a bad memory most of the time but can remeber important details from time to time, he is aware of sam-kun's existance and tries not to forget it, but fails most of the time, he tries to be helpful despite his bad memory and having to deal with a yandere(sam-kun), an alcoholic(kobayashi) and some alien-rabbit thingy(dada-sama). Likes kobayashi, unknowing of sam-kun, DESPISES dada-sama 