Castlevania Season 4 Trailer: An Epic Showdown Awaits! Get hyped! Kyassuruvania arrives on the streaming network this May. And, of course, the new Castlevania season 4 trailer promises an epic conclusion to the animated series filled with blood, guts, death and gore. Castlevania, which started in 2017 and is based on the iconic video game series by Konami, has been key to Netflix’s catalogue of original anime series. Developed by Adi Shankar, it follows the adventures of vampire hunter Trevor Belmont as he attempts to bring down Dracula and his horde of nightmarish creatures. Unfortunately, Vlad Dracula Tepes just won’t stay dead.