Due to an accident, Mei Yu was temporarily brought back to the village where she spent her childhood.
She didn't think it was a good idea, but... she didn't feel like she had much of a choice.

The places in her memory had faded, unable to recapture the feelings of the past, but some marks seemed to have ingrained themselves deep into her marrow, leaving Mei Yu feeling as though she might never break free.
Yet, whether it was her childhood playmates she met again or the mysteriously encountered visitors, they all seemed to ripple through her once calm heart like a stone thrown into still water...

[From Steam]