A third manga K: Days of Blue, was serialized in Kodansha's Aria between November 2013 and July 2014, and a fourth, K: Countdown, ran in Aria from December 2014 to July 2015, while a fifth, K: Missing Kings, ran in Monthly G Fantasy from April to August 2015.
Sebuah manga K ketiga: Days of Blue, itu serial di Kodansha Aria antara November 2013 dan Juli 2014, dan keempat, K: Countdown, berlari di Aria dari Desember 2014 sampai dengan Juli 2015, sementara kelima , K: Missing Kings, berlari di Bulanan G Fantasy sejak April hingga Agustus 2015.