Koteosa is the dark twin of decora. It's as simpel as this: decora all done in black and dark colours. Koteosas might add other colours too, of course. Such as pink, red, purple etc.
Koteosas often hang out with their decora friends. Looks kinda like the kuro and shiro lolitas.
Kotie- a person who is very sensitive and isn't very trusting with others. Koties procrastinate and get lazy but if you ask them to do something for you they would. Don't underestimate Koties because they are very sly and can get there way if they really want it.
person1-wow, did you see how kotie cried in second period?
person2- yea, but she/he is a very sensitive person.
a person who should never think hes better than his best friend, koties are smart but not generally strong and should just continue gorging themselves and stay home.
kotie is a general slang for being lazy and morbidly obese.