Synopsis: The Devil’s Casebook

A cursed drug. A string of mysterious deaths. And a detective with something inhuman inside.In the city of Tentoku, a string of bizarre deaths shocks the public. The only clue: a mysterious new drug known as “Faust.”Subaru Shizuhara, a private detective, teams up with police officer Sumire Katsuno to dig deeper into the case. As they follow the trail, they uncover a terrifying truth: the deaths are part of a ritual meant to summon a demon into the world.But the horror doesn’t end there.As the investigation continues, Sumire realizes the unthinkable—Subaru himself may be harboring that very demon inside him.Can they solve the case before the demon awakens completely?Or is the city already doomed?