|Other languages:|| German: Musai|
|Notables:|| Καλλιοπη (Kalliopê)|
|TV Show:||"Kiss of the Muse"|
|Books:||Aunt Marie's Book of Lore|
Khloe Sedgwick was being accosted by her ex-boyfriend, Anton Cole, who had killed her current boyfriend at a library. Nick Burkhardt chases Anton down, only to watch him dive into the river. Khloe thanks Nick for saving her, and kisses him on the hand. When Nick shows up at her home for a follow-up, she explains her passion for art, as well as her passion for those who "see the world differently." Khloe then kisses him on the lips and woges into her Musai form. She becomes very frightened, not knowing until then that Nick was a Grimm.
While looking through the books, Hank, Monroe, and Rosalee find a Musai entry. They discover that the Musai's relationship starts with a kiss, and always ends in death and madness. They also discover that the artist Vincent van Gogh was a victim of a Musai prostitute named Rachel. When his apprentice Paul Gauguin arrived for a visit, he confronted him with a razor blade before fleeing to the brothel to meet Rachel. There, he severed his own ear, wrapped it in newspaper, handed it to her, and went home. Gauguin found him later unconscious in a pool of blood and took him to the hospital. Gauguin asked a Grimm who he was acquainted with to investigate the situation. The Grimm discovered what Rachel really was and subsequently beheaded her.
When Nick visits her home again, Khloe tells him that Anton is also there, and the only way to truly have her is to kill Anton. After Nick is pulled away from Anton, both he and Khloe are put in police custody. After a brief questioning by Hank and Captain Renard, she tells them that what is happening to Nick cannot be stopped, and that she has no control over it. She was simply born this way.
When Nick is dissuaded from killing Anton in his cell by Juliette, Renard pays Khloe a visit in the interrogation room. He then threatens her with his Zauberbiest side if she ever returns to Portland, then lets her go.
When a Musai woges, their hair turns red and their skin turns shiny bluish-green. Musai have large, deep blue eyes and long pointed ears similar to those of elves. The lips of the Musai secrete a psychotropic substance, making its kiss to be known as euphoric and addictive as any narcotic known to man. Once a relationship has been established and sealed with a kiss, it always ends in madness, destruction, and death. Should a Grimm be kissed by a Musai, the effects of her kiss will begin to affect them much faster than anyone else.
Similar to Ziegevolk with women, Musai don't seem to try to hide the influence that they have over men. They also don't feel guilty about the death and destruction that they cause thinking that they have done nothing wrong. They believe that a short, artistic, and passionate life is better than living a long life with untapped potential. They are passionate about art and target artists or those with untapped creative potential such as authors or composers. They claim to be able to sense untapped power in people, which is what draws them to their victims. They normally target one victim at a time and once their first victim ends up dead or insane after creating masterpieces, they move on to their next target. The relationship between the Musai and their victim causes the victim to become obsessive, willing to kill or die to be with her. The only way to cure the effects of a Musai's kiss is with true love.
Like many Wesen they fear Grimms. However, they have no problems manipulating them if a Grimm falls under their influence.
Excerpt from Grimm Diaries
13 January, 1889
I was called in by an artist acquaintance of mine whose name is Gauguin. The night before he had been accosted with a razorblade by another artist friend of his by the name of Van Gogh. Gauguin is worried that his friend is under the pernicious influence of a prostitute. He assigned me the task of discovering what kind of witch this Rachel was. I was loathe to discover that this trollop was no Hexenbiest but a Musai, and although she may have been Van Gogh's greatest inspiration for some time, her influence was starting to take its toll, causing him to cut off his own ear. I returned the favor and instead of taking off her clothes, I took off her head.
The Musai have been known to be great sources of inspiration to talented individuals, especially artists.Their presence and kiss enhances the artist's inherent abilities to extreme heights. However their influence also seems to take its toll and come with a price.
- The Musai appears to be based upon the Leannán Sidhe, creatures of Irish mythology who give artists the ability to create emotional works of art in exchange for the artists' devotion, feeding on the artist's life and fanatical devotion– driving the artist to madness and sometimes death.
- Musai are named for the Greco-Roman Muses, the goddesses of the arts who inspire artists, but the similarity ends there, as mortals simply prayed to them for inspiration.