A manga prequel called K: Memory of Red, drawn by Yui Kuroe was serialized in Kodansha's Aria between May 28, 2012 and August 15, 2013.
Sebuah prekuel manga disebut K: Memory of Red, ditarik oleh Yui Kuroe itu serial di Kodansha Aria antara 28 Mei 2012 dan 15 Agustus 2013.