Reborn to Survive the Giant Python

In her past life, the female lead's family encountered a Titanoboa. She was injured saving her brother, then abandoned and devoured. Reborn, she warns her family of the python, but they don't believe her. Her brother and wife insist on going to the Altar. Signs (python shedding skin, dead fish) are ignored; family scolds FL. At the Altar, they smash snake eggs, harm baby snakes. Heartbroken, FL hides in a cave to call for help. Titanoboa appears, family panics, begs for help, but it is too late.