"Ah!" Satella was crying on the bed as Zhang Qin Feng was punishing her for being reckless while he was gone. Using the weapon he was born with it since young, he repeatedly boned Satella until she had to beg for forgiveness.
It was a failure at first.
After teaching her a lesson, it seems she's yet to learn from her mistakes. This is why Zhang Qin Feng repeated what he did and made sure she felt sore all over her lower body when she wakes up in the morning.
As for the others, they're much more pitiful as they're unable to get a night of proper sleep due to Zhang Qin Feng and Satella's sexcapade that lasted for the entire night.
"Are you alright, Vice-Boss?" Miriam asked. Although she's not as experienced as Satella in this, she knew something was wrong by looking at how Satella was holding on walls and something to support herself while walking.