https://www.gamespot.com/articles/new-code-vein-trailers-reveal-both-team-revenants-/1100-6460264/

Bandai Namco released two more character trailers for the company's upcoming action-RPG Code Vein. Whereas the first trailer focuses on Mia Karnstein, a young woman who fights to protect her younger brother, these two new ones offer backstory on the former mercenary Yakumo Shinonome and researcher Louis.

All three of these characters are Revenants, vampiric humans who gain power in exchange for lost memories and a bloodlust. Each acts as a possible "buddy" that travel with the player and assist with combat, while also offering their own quest line that influences Code Vein's overall story.