This is really not mechanical ascension - Chapter 4 - 【Pneumatic Pressurization】and Tenglong Reagent

Hero Zhang Han was frustrated in life originally, but he stepped into the Cultivation World by a stroke of luck. Possessing divine natural gifts, he ascended into the disaster-crossing period step by step. He had imagined his life would not have any hardships anymore, but unfortunately incurred the god thunder since he violated the fate. After he woke up, he was surprised to find that he was reborn, going back a few years ago. He found that the world was different from what it used to be after his rebirth and he had a lovely daughter.

I reincarnated as Luna, a supporting character who is accused of ruining the heroine and hero’s relationship, and is mu*dered. I’m not interested in someone else’s man, but the heroine’s friends bully me every day. “Why are you trying to get close to someone who’s already taken?” “That’s right, please stop! Why are you doing this?” “Stop doing such terrible things!” So Luna decides to announce it in front of everyone. “I don’t want someone like Fersen even if you beg me to take him so stop bothering me. I’d rather date Anthes Vincent, who’s rumored to be insane.” And soon she meets someone who she never expected to meet…… “I heard you have an interest in me? The truth is, I do too. Is it a coincidence?”

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.

In the future timeline, Humankind had developed things that brought a revolution to the world. But their best invention was fully immersive VR games that became more and more advanced as time passed. They could create new worlds— in virtual reality, that was more beautiful and profound than the real world they lived in.