Pain.
Lin Mingyue woke up with pain all over her body with her face facing the ground. Mingyue shrugged off her backpack from her shoulder and turned her body. She stared at the sky and blinked as raindrops caressed her skin. Then, the image of her sister slipped at her steps replayed on her mind.
They were holding hands, so her sister had pulled her together as they fall.
The last thing Mingyue saw before she fell was Yang Yun's anxious face. He stretched his hand to catch her, and she reached hers to grab him, but they missed each other.
As Mingyue and her sister fall, their bodies hit the ground and rolled down the hill. There were a few shrubs along the way, and that had slow down their fall. At one time, Mingyue grabbed on the bushes to prevent them from falling further. But Mingyue could not support the two's weight, and in the end, her hand slipped, and they continued to roll down.