https://www.pcgamer.com/watch-men-and-monsters-do-battle-in-the-sekiro-shadows-die-twice-launch-trailer/

Some launch trailers make a point of explaining what a game is all about: Setting the time and place, detailed pre-game history and character motivations, and everything else you need to know if you're curious about why exactly you're shooting all these people in the face. Others just get right to the action with explosions for their own sake, which is also perfectly fine.   

The Sekiro: Shadows Die Twice trailer definitely falls into the latter category. The video begins with the titular Sekiro throwing down with a bull that looks like it escaped from a new Serious Sam game, which earns him a solid "attaboy" and a reminder of the importance of the Iron Code. From there, it's a series of whompings inflicted on, and taken from, various villains, including one thorough-looking beatdown that ends in tears—except it doesn't quite stick. More head-choppings ensue.