"A powerful concoction that could even cause a demon to fall in love."
The Love Potion is an item found in Prisoners of the Elder One. There are two ways to get it: from dousing the fire in the Library, or from collaring Satsu. It can be used with Cake and served to Aubrey to achieve the Aubrey True End. It can also spike the Tofu, but Yuki will smell the drug on it, and serving it to Aubrey has no effect.