Nobuyo is a member of her school's Basketball Club and is sports-oriented. She talks loudly and is often the one who stirs up excitement in class. She is sociable and friendly and a close friend of Ushio Ōta and Keiko Iida. Her parents own a liquor store, where she often helps out at work. She plans to work at the store permanently after graduating from high school.
Nobuyo is the chubbiest girl in her class and a lot taller than average. Her long black hair is tied into a bun near the top of her head. Her eyes are brown with a hint of grey in them. As a Sakuragaoka High School student, she is usually seen wearing the school's uniform properly with black socks.