The series follows an orphan girl named Midori, who is taken in (enslaved) by a traveling freak show. The troupe features unsavory characters such as a mummyman, a snake woman, and a drooling man with no limbs. The owner of the freak show, the eponymous Mr. Arashi, is a strict man who allows his performers very little freedom or joy in life. He is especially cruel to Midori. Midori works not as a freak, since she is normal, but as a sort of caretaker for the freaks.