VN Others A secret from my wife, JK anal training ~Teaching my wife's little sister how good anal feels~

A Secret From My Wife is a Japanese title where Souichi, locked into a marriage of obligation, gets approached by his wife's little sister Kikuno about an embarrassing problem. He spots an opportunity and begins training her in secret.

The entire game is built around its title premise, an unbroken anal sex training arc with corruption, exhibitionism and male domination content escalating across multiple endings. Sex toys feature heavily as the training deepens.

For an anal porn game that is laser-focused on its theme from the first scene to the last, this one never strays.