She is a "Class A" spy (who carries suitable business cards) employed by the government to retrieve information on Lagu by infiltrating Hagen's army dressed as a black Delmo. She runs into Rion and ends up following her. After having been abandoned by her employers and her subsequent rescue by Aika and her friends, she went freelance. She reappears in episode 7, where she joins Rion and company in their assault on the Delmo base. (Source: Wikipedia)
As of the beginning of Hikari's 2nd year of high school, she is tied 2nd place with Iori Tokiwa, the second son of the head of the Tokiwa Hospital. He has a sickly younger sister who has been receiving medical treatment outside the prefecture and has only recently returned to Tokyo. Upon his introduction, Iori's score on the most recent examination results in the rankings of everyone below Hikari to drop by one place. He also wants to get first place, so Hikari sees him as both a rival and a friend. He works part-time in order to earn money for a dream he wants to fulfill, even if it is against school rules to do so, and lives in one room apartment by himself. Iori is apparently striving to become a beautician. (Source: Wikipedia)
The mother of Megumi and Jun, age 40, Rin is well-known as a genius vocalist who frequently travels the world to perform concerts, having just returned from Germany to Japan. She is cheerful and energetic and, like Kei's father, looks much younger than she actually is. The twins have not seen her in two years and are notably surprised when she drops by to visit them when she happens to have a concert in Japan. Rin is apparently very protective of her children; in response to a letter Megumi had written to her mother when she believed that she had been jilted, Rin reveals a rather bloodthirsty streak and comically pulls out a gun to go and attack the boy who supposedly rejected her daughter. Rin first appears in chapter 85. (Source: Wikipedia)
He's half American, half Japanese. He smells, but most of the time, he doesn't even realize it.
She's a tough-as-nails, and landed the managerial job because the principal of the school hoped it would be a way to keep her out of trouble. She barely tolerates the antics of the room of adolescent boys trying constantly to get in her panties. In the episode "the Burning Spirit," she proves to have incredible motivational skills for the boys when she offers a "sex pass" to the best player on the team: "The holder of this pass can do anything they want with my body for a month!" The offer powers the below mediocre team into the city finals.
Kei and Sui's dad, age 36, who always looks young and baby-faced. He is very energetic and outgoing. Though he is the CEO of the Takishima company, he likes to escape from work and lets Kei handle his job, usually because people at business meetings tend not to take him seriously as a result of his young appearance. To Kei's chagrin, his father also frequently tends to drag his son off to meetings, occasionally in foreign places. Satoru also possesses superb fighting skills and trained in his youth to be as strong as a pro-wrestler; he particularly enjoys Hikari's company because it means they can fight, which Kei usually prevents from happening. He is a good friend of Hikari's father, whom he met through their mutual love of pro-wrestling. Before marrying Midori and into the Takishima family, his surname was Utagawa.
X is a former Pokémon Trainer who was shown to be very strong, even as a small child. However, the pressure he got from the paparazzi eventually got to him, which caused him to become a shut-in who refuses to leave his house despite his friends' protests. (Source: Bulbapedia)