C331 Yin Soul Locking Banner (3)

That night, Geng Yun only wrote three to four runes, and after writing the first three, Geng Yun felt that his body was extremely empty. Firstly, it was because he had already expended too much Yin Energy, and secondly, it was because at this time, Geng Yun was unable to continue writing, so he could only give up, and began to sleep on his bed