The Last Nation, Guardian of the World

A young man, on the brink of death, is saved by a small group of exiles in the apocalypse. When he wakes up, he remembers nothing and is given the name Liu Luo. As Liu Luo gradually awakens his superpowers, he uncovers the secret of his identity. In this apocalyptic world, Liu Luo discovers not only his own secret but also the secret of the only nation on Earth. This nation, called 'New China', is facing an invasion by a terrifying force. Meanwhile, there exists 'Destined Utopia', independent of New China. Will Liu Luo choose to stand with New China against the external enemy, or will he seize the opportunity to take control of the world? On his journey of discovery, Liu Luo meets the love of his life, Chen Bingbing. What will be the fate of Liu Luo and Chen Bingbing? — Description from novelcodex.org