(Do You Know) Young Master, Your Strength Is Back?

What Would Happen If You Knew That the Eldest Lady in Nirvana in Fire and Mei Changsu from Nirvana in Fire Were Together?

"Do You Know, Do You Know" is linked to "Langya Bang". The eldest lady wanted to reconcile with Ru Lan and Sheng Hong, and then took Ru Lan to Langya Pavilion to treat her.