The biggest fool turns out to be the person behind the whole thing

• The Only Girl You Haven't Seen (He Lian Xuan is pretending to be mentally disabled in order to both protect himself in the court and enact his schemes.)
• Untouchable Lovers (Rong Zhi is introduced as basically a member of the harem with little importance. He is later revealed to be both a spy and a prince, and many of the events in the drama are his scheming. Also *HUGE SPOILER HERE* Gu Huan is introduced as a weak, innocent, and kind-hearted doctor being held hostage by the army. In the end, he is revealed to be the evil mastermind behind everything that happens to the characters.)

My Journey to You - Gong Zi Yu