Soul pets that are much stronger than the Soul Pet Master will attempt to rebel and run away.
So, during the cultivation process, Soul Pet Masters often start by controlling the lowest-ranking servants, and then grow their soul pets step by step.
Nobody can control a high-level soul pet at the Soul Apprentice level, even if they possess one.
Therefore, major powers impose strict restrictions on the younger generation, and any Soul Pet Master must train themselves, rather than obtaining high-level soul pets from others. The major powers can only provide an environment for these young people to obtain high-level soul pets.
