Husband, please forgive me… I was seduced by my husband's childhood friend. (Tanaka Nanami ADN-443)

A love affair born of unequal social standing. Koichi, the only son of a prominent local tycoon, and Emi, a single mother, face fierce opposition to their marriage, pushing them to the brink of despair. Takuma, a childhood friend who can't bear to see their situation suffer, gives them a push, leading them to move to Tokyo to begin their married life. The couple is grateful to Takuma for bringing them happiness. Later, Takuma is transferred to Tokyo by chance…