All you have been doing is...
In the cave, Little Ai takes off his mask and his clothes. He takes out the talisman from his cloak's inner pocket. After unfolding it, he looks at the symbol. The pungent scent of dead ehr assaults his nose. He turns around and glances at the wall.
Should he wait here for them or leave this place?
He purses his lips. He can't wait to see his Pretty Sister. Ai steps toward the wall and slams the talisman on it. He waits for a few seconds. When nothing happens, he scowls. Did that Pretty Sister trick him? He takes a step back. To his surprise, the talisman is glued to the wall.
The symbols on the talisman glow brightly before they are absorbed by the magic in the wall. Ai widens his eyes when shimmering lines manifest on the wall until there's a door in front of him. He fists his hands and grins. This must be the door to the Dark Realm. Excited, he runs toward the door and pushes it open.
It opens to another cave.
"..."