Characters:
Kei Takashima:

Hikari Hanazono:

Jun and Megumi Yamamoto:


- Tadashi Karino:
- Tadashi ranks 5th in school and is the son of the school's director. He suffers from a bit of wanderlust, likes to travel alone and do whatever he wants or sees fit. He enjoys eating sweets, especially food made by Akira. He seems to end up as the character most comically attacked (frequently by Akira) because of his careless comments or reckless behavior. Near the end, it is shown that Akira likes him and soon they start dating.
- Akira Toudou :
- Akira holds the 6th position in school and is very fond of Hikari; as a result, she is very protective of her. She loves afternoon tea and is very fond of cute girls. Akira apparently is in love with Tadashi although she never seems to hold back when hitting him. She is the daughter of the owner of an airline company.
- Ryuu Tsuji :
- Ryuu ranks 7th in the school. He is the son of the CEO of a sports car company, and one of his family's clients is Yahiro's family. He is an animal lover and is very good at handling children. The twins, Megumi and Jun, are unusually close to him, because they have been together since childhood and it seems that Ryuu has saved them once. It is hinted that perhaps he is smarter than 7th place, but spends the majority of the time during exams worrying about Jun and Megumi, who tend to become bored or sleep during tests.

*Aoi Ogata:Aoi Ogata is a junior secretary of President Takishima, Kei's grandfather, and often serves as the President's emissary. He is nineteen years old. Aoi has a cold and calm character, and has always been expressionless, not smiling even once, but is actually kindhearted and socially awkward in some respects. Like Kei, he has the ability to see something only once and memorize it, though his ability made him a victim of teasing as a child. He first met Kei when he was eight and Kei was five, and came to admire and deeply respect Kei, coming to see him as an almost kindred spirit. Aoi initially appears when he is sent to Japan from London, on orders to convince Kei to transfer to London, which had been planned by Kei's grandfather. When Aoi discovers what is causing Kei to hesitate, Aoi tries to eliminate the problem: Hikari. He tries to threaten her, Kie tries to beat Aoi up, but fails; even though he knows he is not going to convince Kei.then tries to bribe her but ends up having a cheque ripped to pieces by Hikari. At sometime, Hikari confronts Aoi and they both make up the "After School Takishima Fan Club," in which Aoi is the president and Hikari gets pictures of and writes up reports about Kei and sends them to Aoi. Afterwards, he realizes that he should not pressure Kei into the situation that he is not ready for and also realizes that he is most at peace when he sees Hikari and Kei smiling.

Sui Takishima: Sui is Kei's younger brother and resembles a younger version of Kei. Initially, he dislikes Kei because he finds living with him disgusting and thinks of him as a robot wearing human skin. Because Sui feels very inferior to his brother, who is good at everything, he believes that he cannot reach Kei's level and he refuses to take his studies seriously. However, when he sees that even his "perfect" brother can become desperate and caring, Sui develops a huge brother complex. Sui likes to call Hikari "Stupid Girl", but approaches her frequently when he thinks that Kei needs help. He is in grade 6, class B at Hakusenkan's elementary school division.

Soundtracks: