"Mmm~"
Outside the Residence, Nalan Yanran had barely taken two steps when Yun Yun's muffled moan, tinged with a sultry tremor, came from within.
Hearing that sound, Nalan Yanran abruptly stopped. A flush spread unconsciously from her cheeks down her snow-white neck, until even her ears had turned scarlet.
A strange feeling arose within Nalan Yanran. She instinctively pressed her legs together and held her breath.
Then, she slowly turned around and peered inside through a gap in the door curtain.
Inside the Residence, the scene was extremely intense. Lu Chuan and Yun Yun had already stripped off their clothes at top speed and embraced each other.
This time, Nalan Yanran made the same choice as before and began peeping from outside. Lu Chuan's muscular body tugged at her heart every moment.
More than three hours later, Nalan Yanran's legs had begun to go numb from standing in the exact same position outside. Her body suddenly lost its balance, and she toppled forward.
"Ah~"
A crisp cry rang out as Nalan Yanran's delicate body pushed through the curtain and suddenly entered the Residence.
"I'm sorry, Teacher, sir. I came at the wrong time... I'll leave right—"
Nalan Yanran got to her feet, her face burning red. With her head lowered, she hurriedly tried to explain herself to the two people on the Stone Couch.
Before Nalan Yanran could finish speaking, Yun Yun, whose breathing was extremely ragged atop the Stone Couch, interrupted her.
"No... Yan Ran, you came at just the right time. Hurry and help your master..."
Yun Yun pleaded to Nalan Yanran in a voice that sped up and slowed down unpredictably.
Upon hearing Yun Yun's words, Nalan Yanran's foot, which had just been about to move, froze in place.
At this moment, she was nervous to the