wrong.

Actually, although Sekiro takes place in the Sengoku era which is just 50 years after medieval times, the Armored knight boss is wearing armor that comes from Europe tying in the medieval themes. Also inspired by Berserk with the inclusion of Wolf’s prosthetic arm which can be fitted with variations of the weaponry added to Guts’ prosthetic such as, the fire cracker (bomb), the canon, shiruken (arrows). Notably the themes of Berserk although subtle still persist as Guts and Wolf share the same goal, to save their loved ones after having been defeated in an arduous battle. Sekiro is technically a “nobody” only because of his title of Shinobi where he is essentially an assassin whose presence is mostly obscured by the enemy. Whilst Sekiro inverts the typical souls narrative of reclaiming the position in power in a “dying world” the end of Ashina, his main priority is to sever the ties of mortality and thus aids Kuro throughout the game in order to fulfill the request. One of the endings does revolve around fire after Sekiro becomes Shura and is engulfed in flame. The final boss of both Shura and Severance endings are husks of their former selves. Shura Isshin is at his lowest power level and near death, Sword Saint Isshin is the version of him after having succeeded in his Coup although badly injured after having lost vision in one eye and other bodily injuries that wouldn’t deem him in his prime.

But yes it is the best Fromsoft game