Natsumi, who has particularly large breasts, has been the object of desire from men every day since her body developed. Before she knew it, Natsumi only felt that her existence was worthwhile when she was desired by men... but after meeting her husband (Kenji) and his son (Manato) and spending irreplaceable days with him, she began to feel normal happiness. However... Natsumi is noticed by the president of the company where her husband works and in order to support her family, she throws herself into a life of a secretary and a sex slave. While living this life, she is also noticed by Manato's classmate who happens to see Natsumi in town... This is the story of a woman who was on the verge of finding happiness while being tossed about by her sexual desires but falls back into sex slavery...
@GypsyBastard Just a timeline of her growing up and her sexual experience with a few scenarios of what happened in her past. The epilogue is the manager still having his way with her, but nothing is said about her kid and husband.