It seemed that Ruchette's plan went off flawlessly, the steel ball swishing past her head harmlessly and her shot firing off cleanly into Shin's exposed body. The only problem being, that she fired halfway into his spin and he was facing away from her shot. It slid across his chest at tremendous speeds, shredding his vest and slicing deeply into his pectorals. Blood shot from the wound and oozed slowly from the newly formed gash. Both of his feet planted on the ground after his spin, however he was still spinning. Twisting his hips and letting his right foot slide towards her body. 

Extending his right arm with the hooked blade aimed forward. The momentum from his leap and spin carrying through into his next movement. Ruchette had put herself back and with her body turned away from him, with the intent to dodge his weight she had also put herself at an offensive disadvantage. See, with her left arm raised and her right arm simply hanging by her side. With it being in her right hand, she would have to raise it up and across her body in ther short amount of time needed to block his attack. 

Now, with the hook at roughly chest level and being raised upwards towards the side of her throat, he was also shifting his weight onto his left leg and turning his body away from her right arm. Preparing himself to shove away from her guaranteed reply by putting her left arm near or at his back; Depending on how she moved. With the time that it took her to form her first weapon, Shin noted that she wouldn't have enough time to form a secondary blade by the time his hook had met her neck. 

The long and short of his attack is that he's aiming to shove the blade into her throat and sever both major lines of blood too and from the brain in one devastatingly quick slice. If she wanted to attempt to kill him quickly, it would be his pleasure to end her swiftly in response.