"Hey, Xiao Ning, teach me a lesson."
"Go away, no time"
"Teach me something." Wang Youyu shook Ning Chengyi's thigh to show that he was really sincere.
"No, how do you want me to teach you a simple sum of a sequence?" Ning Chengyi gritted his teeth and grabbed his restless hand.
"But this is an infinite sequence. Just like my love for you, it lasts forever. So, teach me how you can make my love for you last forever."
"Gold, wood, water, fire, you"
"Thank you, wife, for the compliment."
This is probably a heart-warming story about a bad student curing a gloomy and low self-esteem student.
Concept: The love of an 18-year-old is the joy of an 80-year-old