Zenless Zone Zero: The Undying Vampire

[Invincible + No Female Lead + Vampire + Has His Own Faction + The Protagonist Is a Little Twisted + Eats and Kills Anyone Who Gets on His Nerves]

The ones who can kill monsters are always human.

Fear is an instinct shared by all living things; courage is humanity's hymn.

Under pressure, Erosion had no choice but to restart Earth Online, only to unexpectedly transmigrate into the peerless Zero World he had played in his previous life.

When he woke up, he was mistaken for a monster. Then, quite by accident, he discovered that he had become Alucard from Hellsing. Should he transform into a monster and wipe everything out, or rely on the goodness he has left and hold himself back to bring peace to this world...?

To reiterate, there is no female lead in the main story!!! Ship whoever you want.

Sorry if some original characters are a little out of character!