Kaede is a woman who returns to Japan after living abroad for some time. She has dissociative identity disorder, which means she has two distinct personalities - one being Japanese and the other being American. The Japanese personality, named Kaede, is gentle and knowledgeable about Japanese culture. On the other hand, the American personality, named Kaere, dislikes Japanese culture and often threatens to sue others. Unfortunately, Kaere's behavior has become more dominant due to her return to Japan. Her name combines elements of both cultures - "kaede" meaning "return" in Japanese and "Kaela Kimura," a Japanese idol. Kaede also enjoys showing off her panties with strange images on them. It is worth noting that she had a third personality until coming to this class, but the students triggered a psychotic breakdown.