Song Introduction

Generally speaking, a little girl accidentally opened a secret compartment left by her grandfather out of curiosity, and then discovered a series of short stories led by a song. Maybe the way of experiencing this story is a little special every time, and the ending is also a little, well, special... You can think of these as traveling through different time and space or different regions in the same time and space (a bit like traveling through time). However, bystanders can only be bystanders, and sometimes the way of participation may be a little different. PS: This article is fictitious, so don't take it seriously.