Joe Higan is a Nukenin – a former ninja who escaped his clan and is hiding from his violent past in rural America with his family. One night, he is ambushed by a team of assassins from his former organization who exact a bloody retribution on Joe and his family for betraying their ancient code. Rising from his seeming "death," Joe will re-emerge as his former self – Ninja Kamui – to avenge his family and friends. Kamui is a 21st century ninja, a shadowy anachronism who pits his ancient skills against high-tech weaponry with brutal finesse. He must face off against trained assassins, combat cyborgs, and rival ninjas to bring down the very clan that made him.

"Kiku-chan to Okami" is an adaptation of "Grave of the Fireflies" author Akiyuki Nosaka’s short story "Toshi-Oi Mesu-Okami to Onna no Ko no Hanashi" (The Story of the Old Mother Wolf and the Girl), which follows a girl and the wolf in the fields of WWII Manchuria who watches over her like a mother.

Sixth season of Cardfight!! Vanguard: D Series.