Jackson VS Granny Jin!

"ah!"
Alaia quickly covered her ears.
The vibration was so strong that she could hardly sit still.
Granny Jin stared at the cave entrance, her face looking extremely ugly.
Boom! Crash!!
The huge rock shattered, and moonlight poured in from the cave entrance. A young man stood outside the cave, calm and composed.
"I'm coming in now, aren't I?"Jackson said with a smile.
"Boy, use your fists..." Granny Jin stared at Jackson's hands.
Jackson moved his ten fingers, making...