Sword of the Stranger(2007)
Original Title: ストレンヂア -無皇刃譚-
Pursued by formidable Chinese assassins, young Kotaro and his dog run into No Name, a mysterious stranger who gets pulled into the chase. The unlikely companions form a bond over saving the dog from a poison attack, but chaos erupts when the assassins find Kotaro, and No Name must face his past before a horrible fate is met again.
Sword of the Stranger streaming: where to watch online?
Currently you are able to watch "Sword of the Stranger" streaming on Funimation Now. It is also possible to buy "Sword of the Stranger" on Microsoft Store as download or rent it on Microsoft Store online.