The current Shinki of Yato. Died at a young age, making him miss his normal life as a middle schooler. He acts like his age, and was once stealing money from people with the excuse that it's okay since he's dead. Even though Yato is his master, Yukine doesn't really show respect to him as much as how he actually respects Yato. After being 'saved' by Hiyori, he becomes more obedient to Yato and Hiyori. He's only a year younger than Hiyori. His shape as a Shinki is a katana.