Inu × Boku SS (妖狐×僕SS Inu Boku Shīkuretto Sābisu, lit. The Dog and I Secret Service), also known as Youko x Boku, is a Japanese manga series written and illustrated by Cocoa Fujiwara. An anime adaptation by David Production aired in Japan between January and March 2012. The anime has been licensed by Sentai Filmworks for streaming, and home video release in North America.
The Maison de Ayakashi (メゾン・ド・章樫 Mezon do Ayakashi), better known as the Ayakashikan (妖館), is a high security apartment building where humans with demon ancestors, or youkai, reside, each guarded by their own Secret Service bodyguard. A youkai girl named Ririchiyo Shirakiin moves into the Ayakashikan hoping for some peace and quiet. Instead, she finds herself with the service of the Secret Service agent, Miketsukami Sōshi.
The first four volumes of the manga are a prologue. At the end of volume four, a foe possesses Karuta, leaving her in a coma for several months, and uses other youkai to attack the other residents of Maison de Ayakashi. Due to this, nearly every member of the main cast is killed. Part 2 takes place 23 years later, when those killed are reincarnated.