Box of Words and Spirits

The seventeen-year-old You Neng can see the traces of words - the truth will condense into flowers that will never dissipate. He collected ninety-nine mantra flowers just to open the mysterious wooden box left by his grandfather. There was no trace when the transfer student spoke to Wu Guang, but he could hear the forgotten agreements and promises. The wooden box began to move strangely after she appeared, repeating an unfinished promise. He could see what she couldn't see, and she could hear what he couldn't. And the hundredth flower has long been broken in a forgotten corner.