Legend of the Dark River: I Became Su Changli's System

Volume 1, Legend of the Dark River - I became a system... (In my setting, the younger brother is his biological brother, not adopted) Su Changli wandered with his brother. Later, his brother asked him to take him to a place where he could have a good meal. Then they came to the underground river, but they found it terrible. Food and accommodation were included, but he didn't get a living! Fortunately, he didn't understand what fraud meant, otherwise he really wanted to say that he had encountered a fraudster. Suddenly one day, a voice sounded in his mind. It was the voice of a younger sister, saying that she would help him and his brother, because in the original timeline, he died young and his brother also died. He didn't quite understand how she was going to help him? But he knew that he was saying that both he and his brother would end badly, so he waited for his brother to come back and went to find his brother... Babies, this book passed an experiment with multiple titles, and then the author only chose two titles. "The Legend of Dark River: Dan Xi's Travels" and "The Legend of Dark River: I became Su Changli's system!" ＞ In the end, the second title won, so the title of this book will be changed from now on to "Legend of the Dark River: I Became Su Changli's System!" ＞ Regarding the plot of the original work, I will mention it in one stroke. It is a group portrait. Sometimes the protagonist may not have that many roles. Dan Li/Mu Chang/Yang Wei/Mo Sheng/Ye Bai/Se Jie/Jian An are tentatively the only CPs. Please stay tuned for more CPs.