Space Murderous Intent

On the thirtieth day after traveling to the parallel world, Wang Xuan confirmed three things. First, there are no organizations, countries, or wars that he is familiar with in this world. Second, he is now a fifteen-year-old high school student with an aunt, uncle and a lazy cousin who love him. Third, his predecessor in this world—the real fifteen-year-old Wang Xuan—did not die of gas poisoning. He died of murder. Wang Xuan decided to seek justice for him. In this process, he needs money, a false identity, and a safe house... As for something abnormal that seems to exist in this world? It doesn't matter. He is not a normal person either.