Ryoko Shinonome suffers from memory loss, she is prescribed pills, but they're the main reason it's getting worse. She has an attachment to Tetsuya Ida after he groomed her. She has a younger brother called Ei Sekigahara, although she doesn't remember him due to memory loss. This is the same for most people in her life. She doesn't even remember her own name sometimes. She always speaks like she's confused and tired and in pauses