This is really not mechanical ascension - Chapter 486 - 257: Steadily Advancing, Acquiring Alloys

Warning contains-Incest/Ntr/ Heavy NetorareA Boy struggles with the problems of being raised in a family full of lewd older women.

Rebecca imagined many things after finishing university; dying was not among them.Being reborn as the twin Sister to a different worlds Hero, and dealing by default with his opponents certainly wasn't what she imagined either.English is not my first language, so there will be mistakes. I will try to avoid them but make no promises.----The world this story is playing in, and the characters that are in the original story all belong to Tang Jia San Shao.

After living a mundane life for seventy years, an ordinary man named Ethan dies.Only to awaken as Caelan Aetherisin,in a world beyond his wildest imagination. Reborn as a member of a prestigious vampire royal family, he finds himself entangled in the complex power dynamics of the vampire aristocracy. With five ancient vampire houses ruling the night, tensions brew beneath the surface—old rivalries, political machinations, and deep secrets threaten to tear them apart. Yet, as they face a looming, sinister force that threatens to annihilate their kind, alliances must be formed, and the balance of power will shift in unexpected ways.As the main character navigates his newfound immortality, he must master his powers, understand his role in this dangerous world, and deal with his growing harem—each member more mysterious and powerful than the last. But with desire comes darkness, and he will soon uncover disturbing truths about his family and the world of vampires.Warning: This story contains explicit adult themes, including violence, gore, and disturbing content (incest, and more). Reader discretion is advised.