"Goth" is a psychological thriller manga written and illustrated by Otsuichi, with art by Kendi Oiwa. The narrative revolves around two high school students, Morino and an unnamed male protagonist, who share a morbid fascination with death and murder. The story unfolds through a series of interconnected vignettes, each focusing on a different murder case. The duo investigates these crimes, driven not by a desire for justice but by their dark curiosity and obsession with the macabre.

Morino is a quiet, enigmatic girl who often appears detached and emotionless. She has a disturbing past involving her twin sister, who was abducted and murdered, which deeply influences her fascination with death. The male protagonist, whose name is never revealed, serves as the narrator and is equally drawn to the darker aspects of human nature. Together, they form an unconventional partnership, delving into the minds of killers and the gruesome details of their crimes.

The manga explores themes of obsession, the nature of evil, and the thin line between fascination and complicity. Each chapter presents a new case, ranging from a serial killer who targets young girls to a man who collects body parts. The investigations often blur the lines between observer and participant, as the protagonists sometimes manipulate situations to satisfy their curiosity, leading to morally ambiguous outcomes.

The relationship between Morino and the narrator is complex and layered. While they share a bond over their mutual interest in death, their interactions are marked by a sense of detachment and unease. The narrator often reflects on Morino's behavior and motivations, hinting at a deeper, more sinister connection to the crimes they investigate.

"Goth" is notable for its dark, atmospheric tone and its exploration of the psychological underpinnings of its characters. The artwork complements the narrative, with detailed depictions of crime scenes and expressive character designs that enhance the sense of unease. The manga does not shy away from graphic content, making it a compelling yet unsettling read for fans of psychological horror and crime fiction.