In which episode of Splendid Weiyang Li Minde eats peaches?

Episode 18.

The servile Li Changxi was eating fruit with Chang Le in the garden. The two highnesses arrived, making Li Changxi overwhelmed with excitement. Li Minde happened to be passing by, and Chang Xi complained to Tuoba Han that it was this bodyguard Li. Chang helped Wei Young bully his eldest sister Chang Le. Tuoba Han wanted to please Chang Le and deliberately humiliated Minde. He threw a peach on the ground to make Minde eat it. Chang Xi even stepped forward to pick up the peach and stuffed it into Minde's mouth.

After Wei Yang shouted stop, he was not afraid of the majesty of the two highnesses, and greatly ridiculed Li Changxi and Li Changle. Tuoba Han tried to fall out several times, but Tuoba Yu stopped him, saying that they are today I came here privately and it is not appropriate to make a big deal out of the situation.

Li Minde is played by Liang Zhenlun:

He is the illegitimate son of King Rouran. In order to avoid the Queen's frame-up, he was sent to the Kingdom of Wei since he was a child. He is Li Weiyang's nominal cousin. Sensitive and cautious personality, aloof and indifferent, upright and brave. She was attracted by Li Weiyang's intelligence and the kindness hidden in her heart.