The End of the World: Starting Contract Dark Dragon King

[Rebirth + doomsday game + decisive killing + egoism + building power] (not an invincible text, more of a growth type) In her previous life, Zhang Lan was betrayed by her sister Zhang Xiaowan and died in an endless tide of corpses. However, a miracle happened and he was reborn on the eve of the end of the world with the memories of his previous life. This time, Zhang Lan is determined to change her destiny and live only for herself. He is well aware of the future direction, and takes advantage of foresight to carefully plan step by step to seize the opportunity. Half an hour after the end of the world, he successfully contracted with the legendary Dark Dragon King. This giant beast with the power to destroy the world has become his most loyal pet and fighting partner. On the second day of the apocalypse, the top SSS talent - Shadow Master, was awakened. From then on, he was the king of the night. When overwhelming powerful beasts descend on Blue Star, Zhang Lan will kill all disasters as the Lord of the Dark Dragon King. Let everyone witness the birth of the King of the End of the World!