The Yakuza Begins with a Nightmare

This is the story of an ordinary young man, Luke, who enters a strange dreamland, starts from martial arts, obtains blood words from dream monsters, and becomes a blood source hunter. Get the Bloodspeak Crow Feather and become a Plaguebringer; get the Bloodspeak Leviathan Scales and become a humanoid road roller; get the Bloodspeak Cain Armor and become a vampire hunter... When the nightmare invades reality, Luke uses blood therapy to establish a hunter alliance. The doctrine is "monsters must die"! One day, in the vast universe, Luke's black hair as thick as a giant dragon was flying, and stars were passing by like fireflies. Slightly narrowing his eyes like blood moons, the young man showed a gentle smile: "Now, no one will come to break my peaceful life!" PS: This book can also be read as a Bloodborne fanfic, and the settings are basically the same.