Giant Python: After the Tragic Death of My Loved Ones, I Turned Black and Destroyed the World

[Giant python + alien beast + rebirth + system + apocalypse + gods + heavens] Wang Yan was killed by his wife and her lover, and was reborn as a python monster. Before he could protect his family, he learned that they had also died tragically. In order to take revenge, Wang Yan continued to become stronger and stronger, becoming a super python.