Learn to write and become a truly expressive person

More than 2,000 years ago, there was an emperor in China named Cao Pi, who was afraid that his three younger brothers would fight him for the throne, so he struck first. He first took the military power of his second brother Cao Chang, then forced his fourth brother Cao Xiong to hang himself, and then targeted his third brother Cao Zhi ...... "O old brother, I heard that you are very good at writing poems, so compose a poem for me within seven steps or I will kill you."