2 Book(s) Related to magnificent century

Fresh out of college and fumbling through his first year in the real world, twenty-two-year-old Lysander wanders away from a friend’s party and into an isolated forest. There, he stumbles upon the high-tech laboratory hidden within the ancient castle of Vivienne—a vampire who has spent one century cultivating solitude. Disgusted by the intimacy required to hunt, she long ago withdrew from humanity, passing the endless decades perfecting homemade synthetic blood rather than sampling the countless varieties of plasma she grew tired of.

But Lysander’s arrival spells disaster. In a clumsy accident, he doesn't just ruin dinner; he obliterates her state-of-the-art scientific instruments. With her life’s work destroyed and her synthetic supply cut off, the scent of his living blood overwhelms her engineered senses. Forced to break a century-long abstinence, she takes what she needs, only to find herself addicted not just to his taste, but to the man himself.

Using the equipment as a flimsy excuse to lure him back, Vivienne battles a terrifying new obsession. She craves his body despite believing he’s taken, despising her own weakness. Meanwhile, Lysander’s initial terror curdles into a forbidden fascination. Can a relationship survive when one person feels everything, and the other only hungers?

I was frozen for 100 years due to illness.
One hundred years later, the whole world was ravaged by strange phenomena, and humanity was huddled together in a few small places to survive.
I was awakened from my slumber by the investigation team. I thought I would be killed by the monster as soon as I woke up, but I found that the monster here was my good brother from college.
Besides him, the eerie owner of the barbecue restaurant, the matchmaking ghost who likes to harm people through blind dates, the S-class monstrous ghost in the cemetery... they are all my old friends...
The world a hundred years from now feels strangely familiar...