Sister Ouhuang, Come and Save Me

In the abyss of doomsday, combat power determines survival, and luck determines everything. Xingkong, the heavy weapon series, has full combat power, but is an unlucky guy Qiaoyin, his sister, has accurate marksmanship and is the chosen emperor of Europe. She picked up the mysterious revolver casually, and the high-level mecha chased her to identify its owner. ... Two brothers and sisters wandered in the apocalypse, got involved in the beast tide, and accidentally unlocked the secret of the abyss. "Brother, this time, we will blast through this damn place. "Okay, open the abyss together.