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Yuri Prominently features romance between two females, not inherently sexual. Also known as Girls' Love.Cunnilingus Features oral sex performed on female genitalia.Female Protagonist Main character is female.Primarily Adult Cast Main cast is mostly composed of characters above a high school age.The Red Love Letter
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Yuuka is a writer leading a lonely and unhappy life within a strained marriage. Unable to bear a child, she silently endures her husband's open infidelities, feeling increasingly isolated and unloved. Her days are filled with a quiet desperation, until a chance encounter with her sister-in-law, Kaoru, sparks an unexpected and powerful emotion within her.
As Yuuka spends more time with Kaoru, she realizes she has fallen deeply in love. The feeling is mutual, and Kaoru, sensing Yuuka's hidden desires, confesses her own affection. They share a passionate connection, dreaming of a future together. However, their path is blocked by Yuuka's marriage and her husband's expectations. They make a difficult decision: Yuuka will bear her husband's child to fulfill her societal duty, then divorce him so she and Kaoru can finally live together, embarking on a forbidden love affair.