What Qin Mu cultivated was the teleportation divine art of Heavenly Devil Cult, and it was very different from the blood sacrifices used by the devil gods of the other world. Their blood sacrifice was more primitive and ancient while the teleportation divine art of Heavenly Devil Cult was built on space algebra. It required extremely high attainments in algebra in order to achieve it.
The biggest difference in the two kinds of divine arts was that the teleportation divine art of Heavenly Devil Cult knew what it was and the reason why, seeking a solution and reaching it. However, blood sacrifice teleportation knew what it was but did not know the reason why. It did not seek to understand, but to be convenient.
This gave Qin Mu and the rest the possibility to interfere with it.