KarnevalKarneval.

Karneval (Japanese: カーニヴァル, Hepburn: Kānivaru) is a Japanese manga series by Tōya Mikanagi which began serialization in the monthly josei manga magazine Monthly Comic Zero Sum published by Ichijinsha on August 28, 2007. There are currently twenty-eight volumes released in Japan. The series follows Nai and Gareki, who join a defense organization called Circus in hopes of finding a man named Karoku.