Yi Yun has a bamboo horse brother who is four years older than him, named Song Qiyu.
Then one day, Mother Yi and Mother Song found out the evidence of their "fingertip marriage" on a whim, and let the two brats, who together were under the legal marriage age, get married.
Then, Yi Yun, who looked like "It's great, I'm the bride", and Song Qiyu, who looked like, "If you jump one more time, I'll stop acting", "got married."
However, after the "new marriage", Yi Yun's family moved away.
Many years later, Song Qiyu saw Yi Yun, who had just turned 22, and said, "Get your household registration book and ID card."
Yi Yun: "... What are you doing?"
"Get married."
Then they got married.
Concept: Emotions need to be taken care of constantly.