Comic Spoiler Alert.
This pony is Welfare Mind. She is an earth pony from Canterlot. She is a kind pony and owns a pet shop. Welfare Mind is a shy pony, but cares a lot for others, especially for her friends.
Dragon Fire is one of her best friends. They know each other since they were little fillies. She always takes care of Dragon Fire and tries to protect her. You can’t say she hates anypony, but there are two ponies she doesn’t like: Lunar Lily and Frosted Candy. They are making fun of her friend, Dragon Fire, without any reason.
(MOD: Having a kind pony here o3o I first planned her to only appear in the first pages, but then I decided she needs more pages, because she is the friend of the lead role.)