Several years have passed since a friendship treaty was established between elves and humans… In the apartment next door live the elf mother-daughter pair: Sophilia and Lilia. One day, the protagonist eats some food cooked by his elf neighbor, and immediately afterward he feels an unbearable throbbing arousal—his cock gets insanely hard and won’t go down. When Sophilia (the voluptuous elf mother) comes over to visit, she explains that she accidentally used the wrong amount of herbs from her homeland in the dish. Those herbs have an extremely powerful aphrodisiac/erection-enhancing effect, and if he doesn’t ejaculate immediately and thoroughly, there’s a risk of lasting damage to his reproductive functions. As an apology, Sophilia offers to personally help him with “sexual relief”—using her body to milk him dry and let him pump everything out inside her.