Motohashi Hiroko

She is cool, intelligent, proud, and has a strong sense of justice. Her personality is harsh, but she is friendly and witty in a close relationship. She is a female teacher with an air of a "smart woman" and a "friendly older sister.

Despite her huge breasts, she has a good posture and her sharp movements are very eye-catching. She is slender and tall, with long legs that suit her heels, and crisply coiffed black hair.
Her figure and personality make her very popular not only among men but also among female students.

She may appear cold, but in fact she has a kind and loving nature that cannot leave the weak behind. She has admired Mikoto since his college days and wants to catch up with her every day.