I Transformed into a Corpse in the Apocalypse and Synthesized an Angel Beast

This is an apocalypse where monsters are rampant. Humanity is in a dire situation and only occupies a small city called the Lighthouse. Lighthouse people are divided into three, six or nine levels, and the treatment of upper-class people and lower-class people is very different. Su Bai traveled to this world and woke up in a tomb. He was sealed in a coffin, affixed with a charm, and used the greatest curse to prevent him from waking up. He is a low-class person. His parents were framed and killed, his sister was exiled, and he was also sent for experimentation and became a strange beast. Lighthouse built this tomb specifically for this purpose to seal him. Seeing that Su Bai was about to transform into a corpse, a voice sounded: "Do you want to activate the strongest tomb system to avenge your family!?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.