Chiaki Matsushita/Relationships

Kei Karuizawa
Chiaki and Kei appear to be good friends. She picked up pretty quick that Kei had feelings for Kiyotaka.

Maya Satō
Chiaki and Maya appear to be good friends.

Kiyotaka Ayanokōji
There is no direct interaction in the first season of the anime. However, she was confused by his awkward introduction.

In the light novels, she took an interest in him when he challenged Manabu Horikita.

She is the same as Ayanokōji, in regards to them both hiding their abilities and sharing the same sense of superiority that they can both outclass all (most in Chiaki's case as she probably can not beat people like Arisu and Suzune). She seems to act this way to fit in with her friends, Maya Satō and Satsuki Shinohara. However, as stated before she truly believed that if she tried her hardest she could beat 95% of the school. This does not matter too much to her however as she thinks that no matter how good she is, her class will never reach A-class. Due to these doubts, she just likes to spend time with her friends and enjoy her school life unless something interesting happens like Ayanokōji's showing off his true abilities. She was deeply interested in seeing what the deal was with Ayanokouji after the race and she even tried to spy on him to no avail. She got caught instantly after Ayanokōji and Tsukishiro were talking. She still follows him but was suddenly caught around a corner, where Ayanokōji was waiting for her and the situation was reversed. She then tries some mind games to get information out of Ayanokōji but is unsuccessful. She does eventually get through him but Ayanokōji's answers were definitely not satisfactory no matter how many times she tried. She seems very interested as she thinks that Ayanokōji is also hiding his true abilities like she was.