"Yes, there's no way he triggered the Robbery Dao Coffin for no reason. There must be a secret about him that we don't know—perhaps even he doesn't know it himself. That's why I need to figure it out. I won't be returning anytime soon, so I need to keep him by my side. Brother Lin needn't worry, he's only in the Donggong Realm."
The deliberate emphasis on the three words "Donggong Realm" made it abundantly clear that Sikong Ying didn't regard Su Chen's strength at all. The Donggong Realm commanded this exact same treatment no matter where one went.
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Chapter 1147