When Wajima Takeru visits the pound to adopt a new furry friend, he's intrigued by a solitary dog who appears uninterested in play. Little did he know that this dog was actually the reincarnation of the world-famous detective, Sherlock Holmes, now named Sherdock (a blend of Sherlock and dog). Though only Takeru can communicate with him, Sherdock's sharp intelligence remains intact. Playing Watson to Sherdock's Holmes, Takeru joins forces to solve various crimes throughout the city, utilizing Sherdock's unparalleled observation and deduction prowess.