C187 Alchemy and Explosives

Feng Lingyu's movements suddenly froze: "Could it be because of that crystal, could it be that it is necessary for you to recover your strength?"

Leng Shang Yin could already feel the sorrow and anger hidden within Feng Lingyu's tone. Coincidentally, Ling Qiao had not interacted with him many times, but she truly treated him as her own little sister