You have capitalization errors. You don't captialize some proper nouns. Like Shadow in the first paragraph. You used it as a proper noun, not a common one.
“Dash, wait up!” said shadow dashing through the empty streets of Jellion Avenue. Dash’s golden coat glistened in the morning sun. It was breakfast time for the pack. “I don’t want to be late again like last time!” he said, heavily panting. Suddenly, Dash skidded to a stop which caused shadow and dash to collide. “Ouch, why did you do that?” shadow said furiously.
You have lots of problems with it. Like there are some dashes, and some fangs, where as it should be Dash and Fang.
You also capitalize the first word when ever someone begins talking.
Pair: pairless
Family: none
I also probably wouldn't be your pair/family member unless I know you :O Shocking!