The is an annual Japanese literary award conducted by Tokyo Sogensha since 2010. It is a prize contest for original unpublished stories of science fiction and other related genres. It is mainly intended for amateur writers, but also open to who have professional publications.
The winning stories have been published in the year's-best Japanese SF anthology series from the publisher's imprint SÃ Âgen SF Bunko until 2019. Since 2020, they will be included in Genesis, the publisher's hard cover SFF series. Since 2023, they will be appeared on the publisher's magazine Shimi no Techo.
In 2010 and 2011, some of finalist stories were collected into original anthology series .
Until 2019, Regular judges have been Nozomi Ohmori (critic/translator/anthologist) and Sanzà  Kusaka (critic/anthologist), who have edited the year's-best. Another notable author have been invited as a guest judge each year.
Yà «suke Miyauchi's first collection was nominated for the 147th Naoki Prize and won the 2012 Nihon SF Taisho Award.
Dempow Torishima's first collection won the 2013 Nihon SF Taisho Award. The English translation of the book, Sisyphean, was published in 2018, following that the original award-winning novella "Kaikin no To" was translated into English as "Sisyphean" and included in the English anthology Phantasm Japan. His first novel also won the 2019 Nihon SF Taisho Award.
English titles are for translated stories.