K: Missing Kings

Whilst searching for their missing king (Shiro), Kuro and Neko discover Red Clan member Anna Kushina and Shiro are being tracked by the mysterious Green Clan. The Silver and Red Clans team up to protect Shiro and Anna from this new threat.

K: Missing Kings is a 2014 fantasy animation movie directed by Shingo Suzuki, starring Daisuke Namikawa, Tomokazu Sugita, Daisuke Ono. It holds an IMDb rating of 6.8/10 from 1,058 votes and runs 1h 13m.