Dr. Buel is puzzled by a colleague's new drug.

"It’s finished, Buer! Look at this brand-new concoction!" "Hey, old man—did you brew up another one of your shady concoctions? Let me tell you right now, I’m not going to just sign off on it easily. Remember that 'Musou-maru' you pitched as a virility booster? One of my subordinates tried it and suffered from insomnia for a whole month! (-_-;)" "No need to worry. This one is perfectly safe!" "Really?" "It’s a masterpiece created with the help of the lovely Goddess Sitri. Its safety and reliability are guaranteed!" "With *her*? Just what did you make?" "As you know, Sitri possesses a charm that makes everyone fall for her. Her superior communication skills play a part, of course, but the biggest reason is that she naturally secretes and emits high concentrations of pheromones at all times." "Pheromones?" "Exactly. Several times the amount found in ordinary living beings..." "...at a specific concentration. It enters the bodies of those around her through the nose and mouth, acts upon the brain, and implants a powerful, favorable impression of her." "So that’s it... No wonder I felt such a strange, inexplicable sensation whenever I was near her. That explains everything. Still, it goes beyond the realm of biology. It’s almost like a plant scattering its spores." "It may be a synergistic effect of the 'Flame' and 'Darkness' attributes she was born with. So, we collected her blood, hair, and sebum, analyzed them thoroughly, cultured the extracted pheromones, and refined them into this pill." "This is...?" "The results of the animal experiments were astonishing. A mated pair that had reached the stage of listless indifference suddenly reignited with passion—as if their previously frigid relationship had never existed. My word, it was an incredible sight." "Whoa..." "Well, that earlier one was a prototype made from the 100% undiluted concentrate. This version here has been improved and diluted down to 30%, so it shouldn't cause anything quite so extreme. I thought it would be perfect for couples stuck in a rut or guys who’ve never had a girlfriend... What do you think?" "Absolutely not. I can't possibly approve such a dangerous drug. It could spark an even bigger uproar than the 'Musou-maru' incident." "Why not!? If it works, we might even solve the Demon Realm's population crisis! Guys who can't get a date could live a dream life—it’s nothing but good news!" "You know as well as I do that the drug's effects vary from person to person, right? What happens if someone gets desperate, overdoses, and suffers terrible side effects? Or what if a trend emerges where people become so dependent on the drug that they neglect genuine romance? Neither as a doctor nor as a human being can I sanction this." "Hmm... I see your point. I suppose it isn't exactly ideal. It’s a shame, but I guess I have no choice but to shelve the project. I’ll keep the data for future research, though." "Sigh... Do me a favor, old man. From now on, could you at least try mixing a little 'ethics' in as a secret ingredient?" (-_-;) And so, that invention was meant to be sealed away forever. However, for some reason, a few of the pills—destined for disposal—leaked out into the world. Then, through a twist of strange fate, they fell into the hands of "that man"—one of the "72 Pillars," notorious for his complete lack of social awareness and total inexperience with romance—and would go on to trigger a massive commotion... but that is a story for another time.