Bungou stray dogs, 19

The one who saved Sigma when he fell from the Sky Casino was none other than Gogol, the illusionist, who was presumed dead. Meanwhile, Kamui's plan—the leader of "The Decline of an Angel!"—to assassinate the members of the Detective Agency is causing Kunikida and the others to disappear one by one. However, as long as Kamui remains, the Detective Agency will always be reborn.