The Mysterious Knocking

The next second, Zhang Bo and Zhao Luzheng returned to their seats and continued what they had been doing before the interruption.

Xiao Xiao took his toiletries and a change of clothes into the bathroom. Before long, the sound of running water came from inside.

Zhuge Yun:...

As the night grew deeper, the bustling campus gradually fell silent.

Zhang Bo, Zhuge Yun, and Zhao Luzheng had all climbed into bed and were getting ready to sleep.

Xiao Xiao was still washing up in the bathroom.

"Knock, knock~"

The sudden sound startled everyone.

"Who is it?"

Zhang Bo reflexively shouted.

"Knock, knock~"

The sound came at an unhurried, steady rhythm.

A vein popped on Zhang Bo's forehead as he launched into a string of muttered complaints.

"Who is it? Why are you still up in the middle of the night?"

"Whatever it is, couldn't you just send a message? Why do you have to..."

"Don't you know everyone else is trying to sleep?"

"Eldest Brother, could you open the door before you start complaining?"

Zhuge Yun called out, unable to take it anymore. "Besides, that knocking is kind of creepy."

He rubbed his arms, where goosebumps had appeared without him noticing.

Zhang Bo rolled his eyes, but didn't snap back at Zhuge Yun.

"Who is it?"

He asked again as he went straight to the door and opened it.

His impatient gaze lifted, then suddenly froze.

"...There's nobody there?"

"Knock, knock~"

The knocking continued.

Zhang Bo suddenly shivered.

What the hell was going on?

"Eldest Brother, I think the knocking is coming from the balcony."

Zhao Luzheng pulled off his headphones.

He had a habit of listening to music before bed.

"Are your ears just for decoration?"

How could they mistake sounds