Aria Shichijō (七条 アリア Shichijō Aria) is the student council secretary and the same year as Shino; they are good friends. She comes from an affluent family and is the most mature character in appearance. However, she has a strongly perverted mind; like Shino, she seems to twist every word and thought into something sexual. Because she is absurdly rich and overly pampered, she can be a social airhead. However, she is academically smart as she ranks second, right under Shino, on midterms for her class year. Her chest is larger than Shino's, which causes the latter to feel self-conscious.