Chiasa's relationships with her classmates are an essential aspect of her character. Her interactions with her best friend, Mio Akiyama, and other students, such as Yoshitake Yu, provide comedic relief and highlight her social skills. Chiasa is often portrayed as a voice of reason, offering advice and support to her friends when they need it. Her dry wit and sarcastic remarks also make her a great straight man to the more eccentric characters in the series.