Please Fall Asleep, Emperor

In order to kill the dictator, an assassin wore female clothing and snuck into the palace. He didn't expect to be caught immediately that night. But the dictator did not kill him. Instead, he asked to sleep with the assassin and treated him like a sleeping pill. After staying in the palace for a while, the assassin discovered a deep conspiracy, and the dictator didn't seem that bad after all. Meanwhile, he even started to feel a little sympathetic...