My Vampire System (WN) - Chapter 150: Special Mask

Camilla Sanchez's life took a devastating turn when she lost her parents at a young age. Adopted by her uncle, she expected a loving home, but instead, she endured a nightmare. The situation worsened on her 24th birthday when she was forced into replacing her cousin, Clara, and marrying the ruthless cursed billionaire, Sinclair Luther.Camilla viewed the arrangement as a loveless contract marriage but it seemed fate had other plans. Camilla died tragically and her perspective changed as everything came into light.In a surprising twist, Camilla was reborn on the eve of her forced marriage.Given a second chance, Camilla must now decide: will she accept her fate as a replacement bride? Will she find love with Sinclair Luther? Or will this second life lead to another loveless, painful marriage?Dive into (title) to discover the answers.

In the post-apocalyptic age, men were damned.

Qin Yichen returned to his youth with his memories of more than 10,000 years. Superb mental strength, advanced elixir formula, advanced martial arts.

- Description from xbiquge

There was a Senior Brother and a Junior Sister. One of them was transmigrated to this world and had cheats while the other was the reincarnation of a Great Emperor.