"Su, Cheng, Yu."
Each word was spoken with emphasis, causing Su Chengyu to feel immense pressure.
The Lord of Three Mountains Nine Caves, an elder of the Demon Clan from the centennial war, is the true foundation of the Demonic Path hidden in the shadows before Cui Manlou even appeared.
Currently, Su Chengyu has only interacted with a Mountain Lord from General's Mountain, while the rest are tales of his master, Cang Qing True Master, and that demon path figure.
Combining both, anyone with such a title would have power at least at the level of a Half-step Earth Immortal.
And this is the lower threshold for the other party, so even if the person before him were a true Earth Immortal, Su Chengyu would not be surprised at all.
Fortunately, this place is a far-off region. Even an Earth Immortal cannot ignore the dense Heaven and Earth Breath nearby's oppression. Suppressing his emotions, Su Chengyu spoke calmly.