The plan is simple: go in for a handhold, soft and unassuming. Then, once she's close enough and in position, go in for the kill, twist his arm, and give the guy a taste of his own medicine. Unfortunately, it seems that payback is the last thing she'll get as she severely underestimates just how much of a /brick/ Xemnas is, completely unmoving as she desperately strains to even make him /budge/.
She’s improved. He’ll give her that much. Somehow she’s managed to get the jump on him that he hadn’t realized until too late when the hand hold had turned into an armlock. Still she strains, face screwed tight and eyes squeezed shut in her attempts to… well, Xemnas is unsure as to what exactly it is that the girl hopes to do. Attack him? Twist his arm in some way? Whatever skill she has gained as a newly minted wielder of the keyblade, it would seem she required more time in strengthening her arms.
“I recommend devoting a considerable amount of time in improving your upper body strength.”
Xemnas lifts his arm, the girl still attached, her feet dangling and kicking several inches off the ground.