"Who is it?"
Huangfu Yi looked up at the empty void above him. The eerie female voice in his ears receded like a tide, yet the sensation of being watched lingered.
Despite his Divine Sense revealing nothing and seeing no unusual sights around him, Huangfu Yi was left perplexed, and lowered his head to look at the sword sheath in his hand,
"Non-object? Key of the Gate? What's it for?"
"What else could a key be for, if not for opening a door?"
"Open a door? Flying swords can be used to open doors? How so?"
"Just split it open. This flying sword was originally intended to open doors. But for now, the door isn't the key focus, nor is the key. The main concern is when the door will open, and who will come through..."
The system pondered for a long time, and finally spoke in a somewhat defeated tone,
