The Detective Is Already Dead. Season 2

Kimizuka Kimihiko, a misfortune-prone teen, becomes the assistant of Siesta, an angelic-looking self-proclaimed detective, on a flight 10,000 meters above the ground. The two travel around the world for three years to fight common enemies, experiencing breathtaking adventures, until they face a life-and-death separation. One year after that turbulent period ended, Kimizuka, now a high school senior, indulges in his peaceful mundane life as an ordinary student. Just then, a client comes to him: "Are you that famous detective?" Taking the encounter with his classmate Natsunagi Nagisa as the turning point, a grand new chapter connecting the past and present is about to kick off again.