Gender: Male Age: 16 Personality: A tsundere who teases his sister but secretly takes care of her when she's sick (Kind-hearted) Appearance: Average looks, black hair, and black eyes Features: Extremely bad at studying, best friends with Jang Min-cheol, weighs 0.1 tons Nickname: Green Pig

Gender: Female Age: 12 Personality: A bit clumsy, energetic, prefers playing over studying Appearance: Average looks, short black hair in pigtails, and black eyes Features: Extremely bad at studying, best friends with Daisy and Angelina, wears glasses Nickname: Tooth Monster Real Name: Han Da-un

Gender: Female Age: 12 Personality: Cheerful, bouncy, energetic, and honest Appearance: Looks a bit like a... hamster? Average looks, black hair in an apple hairstyle, black eyes Features: Has a great appetite, stronger than others her age, has a crush on Euddeum (only Amy knows) Real Name: Kim Deok-sun

Gender: Female Age: 12 Personality: Very mischievous, has a 'princess complex' where she competes with Amy over who is prettier, competitive Appearance: Average looks, looks like Amy's doppelganger, short brown hair in pigtails, brown eyes Features: Bad at studying, wears glasses

Gender: Male Age: 16 Personality: Talkative, pretends to be confident when everyone is together but is timid and cowardly when alone Appearance: Average looks, brown bowl cut hair, black eyes Features: Has a crush on Daisy

Gender: Male Age: Looks like a middle-aged man, but is 19 Personality: Constantly says "Sseup~", sensitive and petty but kind-hearted deep down Appearance: Average looks, short black bob, black eyes Features: Bad at studying, looks like a delinquent, the famous 'Sseup Ajeossi' of the neighborhood

Name: Choi Eomji Gender: Male Age: 4-5 years old Breed: Bichon Frise Features: Amy and Han Euddeum's dog Nickname: Thumbelina, The Youngest

Gender: Female Age: Around 40? Personality: Strictly controls the mischievous Amy and Han Euddeum Appearance: Average looks, curly black hair, black eyes Features: Mother of Amy, Han Euddeum, and Guest

Gender: Male Age: Around 40? Personality: Mischievous, humorous, quirky, and kind Appearance: Average looks, black hair, black eyes Features: Father of Amy, Han Euddeum, and Guest