Challenge accepted!

The noise startled everyone and they simultaneously turned their heads towards the source. Except, what they saw shocked them even further into speechlessness. 

The person who caused the clatter was none other than Ji-Won. 

He had been carrying a large stack of papers along the aisle between his office and his team members' working area. For some reason, though, his arms unexpectedly gave in just as he was passing by Su-Jin's desk, which was located close to the aisle.

At that moment, the area around his feet was littered with sheets of paper. Ji-Won's face was filled with mortification as he bent down to collect the files back into his arms. 

Seeing this, Su-Jin was the most surprised. She was the closest to his office, but she hadn't heard anything. Either she had been too focused on the conversation with Seo-Jun or Ji-Won had been too careful not to make a noise.