The four assassins were dripping wet, presumably having sneaked over from under the ship; however, it was a mystery which technique they used that prevented them from being detected by Divine Sense!
They were also using a professional set of sword formation designed for four people, their shortswords coated with ink to hide the gleam of the blades. Their movements and coordination were in perfect sync, almost flawless! Clearly, they were professional killers!
They trapped Liu Qing at the core of their formation, striking from left and right, assaulting her from front and back with a barrage of chaotic thrusts. Even though Liu Qing possessed the cultivation of the Golden Dan Realm and demonstrated skill with her pair of snake fang daggers, it was evident she was well-versed in martial arts.