Faced with her questioning, Lu Jingyan was at a loss. He wanted to explain, but he didn't know where to begin, as even he didn't know what the letter "E" was supposed to mean.
Lu Jingyan stared at her blankly, then opened his mouth: "I..."
His expression was guilty, and his voice was as faint as a mosquito's hum. Gu Qing couldn't bear to tease him any longer and suddenly raised her volume: "Oh! I know!"
Chapter 102