Upon hearing that, Xiao Yifei nodded noncommittally, indeed, this door truly puzzled him. Seeing this, Ci Xin sighed and said, "There's no harm in sharing these things with you, so listen carefully."
Saying this, Ci Xin paused for a moment and then continued, while Xiao Yifei listened intently out of curiosity. "In the Northern Sea of our country, there are various islands of all sizes, this much you surely know, among which some have been developed, and others have not."
Listening to Ci Xin's sudden mention of this, Xiao Yifei frowned because he couldn't figure out how these islands were related to a door. Until Ci Xin continued, "However, on one of these deserted islands, there was a discovery that surprised me."
At this, Xiao Yifei immediately thought of the door Ci Xin had mentioned, and he immediately replied, "Could it be a door?" Ci Xin nodded and said, "That's right, there was a door standing abruptly on that deserted island."
