Blood Lord in the Sun

Traveling to another world, and getting a vampire gift pack?

Roger looked at his physique that was not afraid of sunlight and immune to holy water, then looked at his fellow vampires smoking on the stake in the square... and he slipped away!

In order to save his life, he decisively slipped away to the "Devil's Land" that was feared by the whole continent and became a local emperor (lord).

Recruit refugees, conquer alien races, develop technology, build weapons... build a territory from scratch.

Roger: "Thank you for the invitation. I just want to stay here in the territory. But if anyone tries to burn me, I will let him taste the 'holy light' of science!"