Ore ga Kanojo wo *su Wake

Synopsis

Once, he held deep feelings for a woman who ultimately married his brother and later gave birth to his niece. Those unreturned emotions festered over time, causing him anguish as he obsessed over losing the person he cherished. His niece contacted him one day, asking to stay at his place after clashing with her father—a situation that had occurred before. He agreed to let her stay, but this time felt different; he observed how much she had matured, both physically and emotionally, and recognized in her a resemblance to the woman he had lost. Consumed by warped thoughts and a twisted mentality, he used an aphrodisiac he had obtained by chance from a street seller. He slipped it into her drink and took advantage of her.