The Weakest Beast Egg Reincarnated? the School Beauty Contracted Me with Tears

I was reborn as an F-class beast egg that the whole school laughed at, but on the day of the contract, the school beauty chose me. "Is Su Li crazy? It's better to raise a grass snake than contract this useless egg!" When the killer tore her sleeves apart, the eggshell was suddenly plated with bloody metal lines. [Eternal evolution system activated! Lifespan exchange ratio: 1 year = 100 evolution points] [The mechanical god's heart is bound! Deadly threat detected, it is recommended to load the "Annihilation Particle Cannon"] I burned my life for thirty years, and when the eggshell cracked, it wasn't the claws that stuck out—— It's a dark muzzle.