Tsugumi Ohba

Tsugumi Ohba is a Japanese manga writer who has never been publicly identified — a pen name behind which a real person works with extraordinary skill but has chosen, for reasons of their own, to remain anonymous. What is known is that Ohba collaborated with artist Takeshi Obata on two of the most significant manga of the twenty-first century's first decade, and that these collaborations have left a permanent mark on the global understanding of what manga storytelling can achieve.

Death Note, their first collaboration, was serialized in Weekly Shōnen Jump from 2003 to 2006. It begins with a single, irresistible premise: a bored shinigami drops a supernatural notebook into the human world, where a genius high school student named Light Yagami finds it. Whoever's name is written in the notebook dies. Light — convinced that the world is corrupt and that he has been chosen to purify it — begins using the notebook to kill criminals, attracting the attention of the world's greatest detective, known only as L. What follows is one of the most tightly constructed psychological thrillers in manga history: a chess match between two equally brilliant minds, each aware that the other is their opposite number, played out across years and continents. Death Note was adapted into a celebrated anime series, multiple live-action films, a Netflix production, a Broadway musical, and became a cultural touchstone for a generation of readers worldwide.

Ohba and Obata's second collaboration, Bakuman, ran from 2008 to 2012 in Weekly Shōnen Jump. Where Death Note was a thriller, Bakuman is a meticulous insider account of the manga industry itself — following two junior high school boys who aspire to become professional manga creators and serialized in the very magazine they dream of appearing in. The work is remarkable for its technical detail (Ohba clearly understood the mechanics of Weekly Shōnen Jump's editorial process from the inside), its examination of the creative partnership between writer and artist, and its surprisingly moving portrait of ambition and friendship. It was also adapted into an anime series.

The mystery of Ohba's identity has spawned considerable speculation over the years — various candidates have been proposed and dismissed. What is certain is that behind the anonymity is a writer of exceptional craft: a plotter of rare precision, a constructor of narrative traps, and someone with a deep understanding of how readers engage with escalating stakes. Both Death Note and Bakuman reward re-reading, revealing layers of foreshadowing and structural elegance that are easy to miss on a first encounter.