At 0:42 you catch the string by throwing the yoyo high into the air and using your pointer finger to push the string down into the yoyo to wrap around into a GT. It takes a lot of practice but once you get it down you will be very consistent with it.
the Rejection at the end can also be done from reverse stole. make sure to stay patient as timing is the most important part of it.
YOYO: TOPYO Dominator
String: OTstring normal
Junyi stretches the string before use for a more consistent feel.
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