Chu Yu sat by the lamp while holding a silver butterfly hairpin in her hand. She placed it before her eyes and took a closer look at it. The hairpin was gravely sharp that it could pierce a heart.
On the first day she had arrived in this era, she had scrawled the character '正' (zhèng) at the side of her bed with the silver hairpin. She would draw a stroke each day and now, there were two '正' characters on it now.
Chu Yu moved her wrist slowly after looking at it for a while and placed the end of the hairpin into the flame in the lamp. She retrieved the hairpin a moment later and took a careful look at it again. She then placed the end into clear water and wipe the water away after taking it out.
She repeated the same thing a couple of times.
