Having proven himself on his first expedition into the ruins, Lu Shu tries to return to an ordinary life with his adopted sister Lu Xiaoyu while hiding his cultivation powers from Tian Luo Di Wang, the agency that recruits fighters for the nation's defense. That quiet stretch ends when Lu Xiaoyu is called up for another ruins expedition and outside operatives clash with the country's strongest B-Rank cultivator nearby. Season 2 picks up as Lu Shu weighs how much longer the siblings can keep their real strength secret.