Yu Luoning unexpectedly arrives in a world of cultivation. Because of her limited constitution, cultivating is difficult for her, but she obtains a mysterious illustrated compendium that allows her to learn techniques through spiritual energy resonance. To escape the Feng family's pursuit, she assumes the name Yu Xiaoguai and enters the Li family. With the help of its young master, Li Wenyu, she embarks on the path of cultivation. Later, she ventures deep into the Wangyue Secret Realm alongside Feng Qiguang, Xing Qi, and others, solving formations and seeing through Lu Wanying's repeated schemes. Facing spirit beasts in secret realms, underground palace traps, and competing factions, Yu Luoning relies on her quick wits and kindness to overcome one crisis after another. She gradually uncovers the secrets behind the stolen system and her own origins, ultimately protecting her companions and growing into a cultivator capable of standing on her own.