Over two hours later.
Mu Jinyu and Gu Xiyan walked out of the room together.
Gu Xiyan and Mei Yinxue's eyes held a touch of surprise, and their cheeks were flushed, resembling red apples, tempting one to take a bite.
During the experiment with Mu Jinyu, they had discovered that the Union of Yin and Yang indeed enabled them to absorb spiritual energy faster.
Gu Xiyan and Mei Yinxue had previously been at the stage of trying to absorb spiritual energy, but now they had reached the threshold of cultivation, just like Wen Rou.
This situation left them both shocked and delighted.
At the same time, thinking back to how Mu Jinyu and Wen Rou had sneaked back to the room yesterday, they began to suspect that Mu Jinyu often secretly tutored Wen Rou.
Once they voiced their query, Mu Jinyu naturally had to properly 'teach' them.
This was why the experiment, which wasn't too long initially, ended up dragging on for over two hours.
