Natsuo, a young man who remains a virgin even before the age of 25 due to his natural weakness and reaction to his sexually uninhibited mother, Saeko. He continues to fall in love with his childhood friend Nana (Ren Fukusaki), but she is the type of woman who has a lot of sex experience like Saeko, so Natsuo hesitates. Natsuo's biological father, Narahashi, who has been watching over Natsuo from... see more