Chisa Okada
- Description:
- The principal of Division 9 Elementary School. She is the boss of Alien Party Advisor Megumi, and often berates her for her actions. When Megumi messes up she can soon be found lecturing her on her poor performance. She has connections with those higher up than her and seems to have advance knowledge on the latest rumours and news regarding the aliens.
- Description:
- Yuri's mom seems to work at home spending a lot of her time in the kitchen. She and Yuri often live alone together due to her husband having to work so much. Although she listens to her daughter complaints about the Alien Party she feels she must teach Yuri to not drop her responsibilities or let others down.
- Description:
- Kumi's mom appears to be a writer and researcher. Her husband died when Kumi was 4 and so she and her daughter now live alone together. She sleeps most of the days away and Kumi takes care of her such as helping her with her work by bookkeeping. She states that she does worry about her daughter.
- Description:
- Kasumi comes from a very rich family who have a tradition of working hard. Her father does most of the talking in the series as he explains that he he gives his daughter freedom in what she wants to do but encourages her to not drop any tasks or interests she takes on. He expects her to drive forward in everything she does and be the best possibly to uphold the family name. Kasumi also has a brother who she loves dearly, however he left to study abroad.
- Grade:
- 2, Class C, Hinode Junior High
- Description:
- A boy with light brown hair in the next year up that Yuri meets and becomes friends with during her Alien Party adventures in junior high. Possible romantic interest.
- Grade:
- 6, Camellia Class
- Blood Type:
- B
- Hobby:
- Playing trumpet
- Grade:
- 6, Camellia Class
- Blood Type:
- B
- Hobby:
- Computers
- Grade:
- 6, Camellia Class
- Blood Type:
- B
- Hobby:
- Eating
- Description:
- A fellow Alien Party advisor from another school who Megumi confides in. According to her Megumi is doing a lot better than her school Division 3 which has not had any 'successful entrants' for 4 years, although Megumi still feels she has to do better against rivals from other schools.