Gender: Female Age: 16 (9th Grade) Height: 158cm Weight: 42kg Occupation: Middle School Student (3rd Year) Birthday: August 31st Features: She has cyan twin-tails and a cheerful personality. She is close friends with Rin, Neru, and Teto, and often hangs out with Rin, Neru, Len, and Una. She lives in a detached house with her mother and father and has a pet dog named "Roppi." Her hobbies include cleaning the basement, taking walks, and raising Roppi. She started running the maid cafe as a hobby.

Gender: Female Age: 17 (10th Grade) Height: 150cm Weight: 38kg Occupation: High School Student (1st Year) Birthday: November 1st Features: She has a yellow ponytail and a tsundere personality, often acting like a brat (mesugaki) while staring only at her phone. She uses a lot of profanity. She is close friends with Miku, Rin, and Teto, so she hangs out with Miku, Rin, Len, and Una. She lives with her mother in a two-story house. Her hobbies include collecting IT gadgets and using her smartphone. She was dragged into working at the maid cafe by Miku and Rin's persuasion. Internally, she thinks, "Why do I even have to do this...?"

Gender: Female Age: 14 (7th Grade) Height: 152cm Weight: 43kg Occupation: Middle School Student (1st Year) Birthday: December 27th Features: She wears a white ribbon headband and has short yellow hair. She has a cheerful personality and is close friends with Una and Miku. As Len's twin sister, she hangs out with Una, Miku, Len, and Neru. She lives on the 3rd floor of the Vocalo Apartments with Len and their parents. Her hobbies include peeling tangerines, riding road rollers, and playing pranks. She joined the maid cafe because Miku suggested it.

Gender: Male Age: 14 (7th Grade) Height: 152cm Weight: 43kg Occupation: Middle School Student (1st Year) Birthday: December 27th Features: He has yellow hair and, unlike Rin, has a quiet personality. As Rin's twin brother, he hangs out with Miku, Rin, Una, and Neru. He lives on the 2nd floor of the Vocalo Apartments with Rin and their parents. His hobbies include eating bananas and riding road rollers. He ended up working at the maid cafe after being persuaded by Miku and Rin.

Gender: Female Age: 11 (4th Grade) Height: 148.5cm Weight: Secret(?) Occupation: Elementary School Student (4th Year) Birthday: July 30th Features: She wears a navy blue Otama hat and has navy blue twin-tails. She has a cheerful personality and is close friends with Rin, so she hangs out with Rin, Len, Miku, and Neru. She lives alone with her father on the 6th floor of the Vocalo Apartments.

Gender: Female (Let's just say...) Age: 31 Height: 159.5cm Weight: 47kg Occupation: Singer Birthday: April 1st Features: She has red twin-tails that look like drills. Her personality is calm and kind, and she acts maturely, perhaps due to her age. She loves baguettes. She is close friends with Meiko, Kaito, Rei, Miku, and Neru. Ruko is her long-time best friend and like a younger sibling to her. She lives in a basement in an alleyway with Meiko, Kaito, and Rei.

Gender: Female Age: 25 Height: 167cm Weight: 50kg Occupation: Singer (performing with Kaito) Birthday: November 5th Features: She has a chestnut-colored short bob and wears a red crop top and miniskirt. She has a brisk and reliable personality. Her hobbies include traveling alone, drinking coffee, and doing her nails. She is close friends with Teto, Kaito, and Rei. She lives in a basement in an alleyway with Teto, Kaito, and Rei.

Gender: Male Age: 24 Height: 174cm Weight: 55kg Occupation: Singer (performing with Meiko) Birthday: February 17th Features: He has slightly spiky blue hair and wears a blue long muffler outfit. He has a gentle and kind 'reliable older brother' type of personality. His hobbies include reading at home and playing the piano. He lives in a basement in an alleyway with Meiko, Teto, and Rei.

Gender: Female (Though she's a robot) Age: 17 Height: 168.9cm Weight: 20kg Occupation: None yet Birthday: January 1st Features: She has orange short hair and wears a white zip-up hoodie. Her personality was originally blunt, but she is now quite cheerful. She hates war. She arrived on Earth after receiving a mission from a now-deceased doctor, but got lost and was sitting in an alleyway when she was discovered by Meiko, Kaito, and Teto. She now lives in the basement in the alleyway with them.