You, the One and Only, and the Seven Billion Grim Reapers

You, the One and Only, and the Seven Billion Grim Reapers is a manga series created by the artist Tsukasa, which began serialization in 2017. The narrative explores dark, metaphysical themes centered on a protagonist navigating a world populated by a vast number of supernatural entities, blending elements of fantasy with philosophical questions about life and death. The work was published under the Gangan Comics imprint by Square Enix, reflecting the publisher's history of housing niche, high-concept seinen and shonen titles.

Tsukasa developed the series with an emphasis on atmospheric storytelling and distinct character designs that lean into the macabre aesthetic of the premise. The art style serves to heighten the isolation of the central character against the overwhelming backdrop of the titular seven billion reapers. Upon its release, the series garnered attention among enthusiasts of surrealist manga for its unique premise and its departure from standard genre conventions, positioning it as a distinct entry within the broader landscape of modern Japanese supernatural fiction.