Nuki Nuki Zupposism

In a near-future Japan where elves have immigrated and integrated into human society, a salaryman named Ueda lives next door to an elf mother and daughter, Sophilia and Lilia. When Sophilia accidentally doses Ueda with a potent elven aphrodisiac herb, she offers to relieve him sexually — sparking a daily affair driven by her long-neglected libido after her impotent elf husband abandoned her. Her daughter Lilia soon discovers the arrangement and eagerly insists on joining as his “sexual relief assistant,” and rather than sparking conflict, the mother and daughter happily agree to share Ueda, taking turns servicing him each day. The story ends with both elves treating him as family, greeting him at the door and offering to be fucked together.