Secret Affair with Brother: Rena & Younger Cousin

Struggling with sexual frustration after a long stint in Tokyo where her boyfriend couldn't satisfy her needs due to work stress and low libido issues—a doctor’s warning against rushing things—Rena returns home expecting a quiet life. Her plans are instantly disrupted when she finds Yuzuru back home; heartbroken after being rejected by his crush and dropping out of his boarding school. Trying to cheer up the dejected Yuzuru with well-intentioned words that backfire slightly more than intended, Rena remembers Yuzuru’s past obsession with big-titted hentai manga. Deciding on a distraction technique to revitalize him and herself simultaneously, she heads to his room to let him fondle her ample breasts. But Yuzuru quickly escalates the request: he doesn't just want to touch; he demands to fuck her! Despite verbally protesting the sudden shift in plans, Rena feels an intense surge of arousal—the exquisite pleasure her boyfriend simply can't provide—making her forget all reservations. This forbidden attraction spirals into an undeniable obsession. Rena and Yuzuru begin sneaking intimate encounters everywhere within the family residence, their secret affair thriving under the roof they share. The relationship proves too captivating to contain, continuing passionately even after Rena returns to Tokyo, cementing this scandalous bond between cousin and girlfriend/lover.