[Pseudo brothers + teachers and students + senior year + university campus + HE + 7-year age difference + reunion + double cleanliness]
When Lu You was 9 years old, his father brought an aunt and a boy to him: "Xiao You, this is your Aunt Cai, and this is my aunt's child. Please call me brother."
When Lu You was 15 years old, before he revealed the secret in his heart, this brother left without saying a word.
After searching for several days and nights, I finally had to give up.
When we met again, my brother became a university teacher on the road.
"Are you still my brother?"
"It's your brother, so you don't have to hand in homework, right?"
