No one knows how such a powerful item came to be in Rachel's possession, but even the effects of the spectacles came as a surprise to her, as not only did it manage to convince Beastkin (i.e. Makoto and Kokonoe), but it also made two Murakumo Units (Lambda and Noel) and a Nox Nyctores (Nirvana) fall under its effects, subsequently making them fall in love with Ragna against his will.
The spectacles themselves appear as a pair of pink hued, butterfly-shaped glasses. According to Valkenhayn, the glasses themselves are so finely crafted that the wearer may not even be aware that the glasses are resting upon their facial features.
- The Japanese name of the Spectacles of Eros is written in katakana instead of kanji, but it most likely stands for Possessed/Popularity Glasses (持て眼鏡, Mote Megane).
- Jin Kisaragi also fell under the Spectacle's power despite being a man. However, as correctly stated by Rachel herself, his feelings didn't really need that much of a modification to fall for Ragna.
- Strangely, Rachel was not affected by the Spectacles' influence, but it is possible that she already fell in love with him. Tsubaki, Taokaka, Ignis, Saya, Torakaka and Linhua were also not shown to be affected.