Fan Group For Miss Kobayashi~

A tomboyish otaku computer programmer for Jigokumeguri.note Due to a hilarious chance meeting, she ends up getting herself a dragon for a maid, opening up for more dragons to begin to move into her life.
A-Cup Angst: Kobayashi is flat-chested to the point where a Running Gag is her being mistaken for a man, and she is intensely jealous over Tohru's, Elma's, Lucoa's and Ilulu's enormous bust sizes.
Adoptive Peer Parent: Legally, she's about 16 years older than Kanna, though in reality she's probably several-hundred years younger.
The Alcoholic: Frequently drinking beer or sake, or suffering from a hangover as a result. She even met Tohru after a night of hard drinking.
Alcoholic Parent: She's a Parental Substitute to Kanna and likes to get drunk after work, but her drinking doesn't negatively impact her parenting because of how high-functioning she is.
Can't Hold Her Liquor: She gets drunk very easily, which often results in maid-related rants. Her tolerance for alcohol is so low any magical potion containing alcohol will be nullified in its effects.
Cat Girl: Due to some special medicine that Tohru got for her when she had a fever, she ends up sprouting cat ears and whiskers. They go away after about half a day.
Character Title: "Miss Kobayashi's Dragon Maid".
Chick Magnet: Tohru is obviously in love with her, but Elma is completely open to a relationship with her, and even Ilulu begins to fall for her as well.
Chronic Hero Syndrome: Her inability to reject the promise she made to Tohru after seeing her misery ultimately kicks off the plot. In general, she seems to always go out of her way to help those around her when they need it, even at her own inconvenience.
Clap Your Hands If You Believe: Inverted - when she finds Tohru for the first time, she's been pierced by a holy sword which will destroy the mind of a mortal who touches it. However, Kobayashi's lack of faith (and maybe helped by her drunk mindset) allows her to draw the huge sword with no harm.
Closet Otaku:
Especially over maids. She's got firm ideas on the Tsundere archetype, a good amount of manga on her bookshelf, and a ton of video games to play.
In the manga Tohru offers to play outside with Kanna since she's a kid. Kobayashi notes to herself in response to this that when she was a kid she just sat around and played Harvest Moon all the time. The anime repeats the same line in spirit, albeit without the Harvest Moon reference.