| Shiro is an easygoing teenager content with just being a student—until his seemingly perfect life is halted when a bloodthirsty clan, glowing red with fire, attempts to kill him in the streets. Unbeknownst to Shiro, he is suspected of murdering a member of their clan and will need a miracle to escape their vengeance. Miraculously, a young man named Kurou Yatogami swings in and aids Shiro in his getaway, only to reveal he's also after Shiro's life. Now a hunted man, Shiro will have to evade the clans of seven powerful kings and desperately try to prove his innocence—before it’s too late! | 
| Name | Character | Episodes | 
|---|---|---|
| Daisuke Namikawa | Yashiro "Shiro" Isana (voice) | 26 | 
| Mikako Komatsu | Neko (voice) | 26 | 
| Daisuke Ono | Kurou Yatogami (voice) | 26 | 
| Tomokazu Sugita | Reishi Munakata (voice) | 13 | 
| Miyuki Sawashiro | Seri Awashima (voice) | 12 | 
| Mamoru Miyano | Saruhiko Fushimi (voice) | 11 | 
| Takahiro Sakurai | Izumo Kusanagi (voice) | 9 | 
| Yui Horie | Anna Kushina (voice) | 9 | 
| Yuichi Nakamura | Rikio Kamamoto (voice) | 7 | 
| Tetsuya Kakihara | Adolf K. Weissmann (voice) | 5 | 
| Maaya Uchida | Chiho Hyuuga (voice) | 4 | 
| Shozo Iizuka | Daikaku Kokujouji (voice) | 4 | 
| Jun'ichi Yanagita | Daiki Fuse (voice) | 3 | 
| Yuki Kaji | Tatara Totsuka (voice) | 2 | 
| Takahiro Sakurai | Izumo Kasanagi (voice) | 1 | 
| Daisuke Ono | Akira Hidaka (voice) | 1 | 
| Jun'ichi Yanagita | Saburouta Bandou (voice) | 1 | 
| Aya Endo | Claudia Weissman (voice) | 1 |