Nagasaki Kotomi

The daughter of a landowner who's very famous and known throughout the whole country. Her innocent and refined appearance attracts people to her, but in reality she is a lot more naive than her appearance suggests. She gets along with her husband, but they were arranged to marry by Kotomi's mother, they have a 20-year-old gap and he doesn't come to home a lot. She also became a wife right after graduating college and her daily life is still controlled by her parents, so Kotomi is quite sheltered. As such she has developed a huge curiosity towards things, especially to everything sex-related.