Manaka is the class representative. She is shy and has trouble saying "no" to others. She is helpful and is very reserved. Thanks to Takaki, she finally says how she feels about a certain matter. She does not back down and everyone applauses her. Her best friend is Yuma Tonomi
Yuma is an athletic girl and is out-going. She pretends to be always in conflict with Takaki and that he's always trying to beat her in everything. She thinks he is her rival. Takaki never bothers to ask her why she acts this way until the last episode. She blushes and stutters, giving the audience the impression that she may have feelings for him. Her best friend is Manaka Komaki.
Kaji is in the same grade as Ayu and Nina, and is also the school idol. He is considered cool and always has a nice smile. All his fans are constantly giving him presents, and he even has admirers from the 3rd grade. However, this is only his outer mask. Kaji is in reality a normal guy who hates being given presents by people he doesn't know. But he is working hard on his "nice person" persona because the girl he likes, Ayu, once told him that's the way she liked him. He becomes closer to Nina after she discovers his deception. He is an introverted person, and doesn't like giving away his real feelings or thoughts. Kaji belongs to the school's baseball club. His best friend is Tsujiai.
Tsujiai is a classmate of Kaji, Ayu and Nina. He is the head of the male tennis club and is a slightly extravagant person. Ayu seems to hate him because at the start, he always managed to destroy her chances with Kaji one way or another. Tsujiai introduces Nina to Doraemon (which she loves). His best friend is Kaji and he likes Nina which is shown more in the manga than in the anime. He has a cat name Shinnosuke and is the third person to know that Nina was a magic girl because he saw that Rio the cat transforms into a human.
Being a shy, timid girl, Haruka is set up with Takayuki by her friend, Mitsuki, while she is in high school. The two quickly become close, and develop an intimate relationship. She takes in an interest in collecting picture books. Very early on in the series, she is involved in a serious car accident and ends up in a coma. The main thrust of the story begins when she awakens three years later. She is afflicted with anterograde amnesia, and because of her delicate psyche, her family and Takayuki conceal the truth that three years have passed, which forms much of the tension in the series. (Source: Wikipedia)
The newest experimental maid robot from Kurusugawa Electronics, driven by software called 'Dynamic Intelligence Architecture' designed by Sango. The body is customized from the mass-produced HMX-16 'Leon'. Ilfa proposes to work at Sango and Ruri's house during her testing phase which angers Ruri because she takes all her jobs. Even though she is hated by Ruri, Ilfa loves her because Ruri is the one who shows her that the outside world is not frightening. In the anime OVA, Ilfa is asked to serve at Yūji's house because he has a maid gynoid fetish which becomes a learning experience for her thanks to Tamaki. -Wikipedia-
Lucy is an alien girl who doesn't have much expression and doesn't have any friends. In the anime, she introduces herself to Takaki's class as 'Ruuko Kirei na Sora', which means 'beautiful sky.' She meets Takaki in the sixth episode of the anime, but we see her in an earlier episode without any dialog. She refers to herself as 'Ru', the name of her home planet and the beings on it, and to earth and earthlings as 'Uu'. She greets people by reaching for the sky and saying, 'Ru!' Himeyuri Sango in particular enjoys mimicking Lucy's greeting. Lucy has a cat that almost drowns in the sixth episode but it is saved with the help of Takaaki; Lucy summons a thunderbolt which splits a tree, forming a bridge which Takaaki crosses to lift the cat out of a raging river. Lucy terms this stray cat 'the Nya', saying that it is a special species that can enjoy the true taste of food, and like Ru, Nya is alone on Uu. Lucy likes to cook the Nya fish broiled over a charcoal clay pot, which according to her is the best cooking device available on Uu. Apparently a currency of Ru is matchsticks, one of which is enough to buy a whole rocket engine. Lucy irritates the cafeteria cook of Takaaki's school by attempting to treat Takaaki to the best meal the cook can prepare by paying the cook first one, then two matchsticks, however Lucy is somehow able to successfully purchase her charcoal clay pot and fish to br with matchsticks. Lucy says that on Ru, it is said that the only good Uu is a dead Uu, but Takaaki is a special Uu.