Alien

Alien (宇宙人, uchuujin) (also referred to as "spaceman", in the manga) is an extraterrestrial who occasionally loiters too close to the circus, and is generally an antagonist in the show. He can be summoned by Papi with a ritual involving dancing in the center of a circle of fire pits (shown in 「MEDICINE」). He only appeared in 6 episodes.