Actually, the Tan Clan realized that the cultivation world they know and the cultivation world in this realm is completely different. The Mortal Star they come from was like a beginner village and only by ascension can they leave such a small world. Arriving in the immortal world was exciting yet terrifying. After all, in this world where the strong eat the weak, they who had become the weak felt that the world is cruel. If not for the protection of their Mistress, they won't even be able to become servants and would most likely become slaves.
