Secret Wives' Club is a computer game which explores the Japanese fetish of hitozuma, a form of erotica that involves having sexual relationships with married women. A game by G-Collections, a company that works closely with Peach Princess, the player's task is to sexually train three different women whom do not lead satisfying sexual lives with their husbands.
On the first day of a new job as a tutor, Issei finds the mother of his student to be the woman he had a fling with in Bali. Happy to meet him again, she later introduces him to her two beautiful married friends, lovely ladies of leisure who are frustrated with their boring sex lives. Before he knows it, he agrees to become their trainer in the "pleasures of life".
A generous housewife, she is Chisato's friend. She's very curious about sex and willing to try new stuff. Once turned on, she won't be able to stop. She likes to use sex toys in the bedroom.
Shy and naive, Nana is a friend of Chisato. She's married to her husband by arrangement, and their sex life is far from what it should be. She tends to be passive in sex.
Secret Wives' Club is an adventure game in which the objective is to train the girls and increase their various sexual stats. The game utilizes a multi-ending system, where the stories unfold and change according to command selections. It's entirely up to the player how the stories will grow and end. The player chooses the character and the type of lesson from a menu. The further one proceeds in the game, the more lesson selections one will have. Each character has different types of lessons depending on their personalities.