Play a good game with you

In other words, this girl wasn't a student from MDFF Academy. She was just someone Yin Yuerong was using to test her attitude.

If she was really impersonating Yi Yunmo and ran into a student from MDFF Academy and this student claimed she didn't know her, a flaw would be exposed regardless of how good her acting skills were.

Yin Yuerong had made the wrong move. From start to end, Yin Yuerong only had one opportunity to test her, and that was to kill Third Elder. Unfortunately, Yin Yuerong missed that opportunity.

Could it be she didn't attack due to qualms regarding Si Yehan?

When Ye Wanwan heard this girl who claimed to be a student from MDFF Academy saying she knew Yi Yunmo and met Yi Yunmo at MDFF Academy before, Ye Wanwan nearly laughed out loud.

Foolish child… There wasn't any Yi Yunmo. Everything was an illusion.