Towa Yamagishi's Papi won the grand prize in the 12th 12-Year-Old Literature Award. Set in Paris, it portrays memories of a violinist grandfather from a child's point of view. I confirmed inclusion in a digital prize collection, but found no standalone print book or ISBN-bearing volume.

An award-winning story by an elementary-school writer about Paris, memory, and a beloved grandfather.

Sousuke Numao's 11-sai won the grand prize in the postcard fiction division of the 12th 12-Year-Old Literature Award. It is confirmed as a short-form prizewinning entry, but I found no standalone book or ISBN-bearing print collection.

A compact award-winning story written by an elementary-school student.