In junior high school mathematics class, whenever the words "addition, subtraction, multiplication and division" are read, some students can't help laughing. Where there is Wolong, there is Fengchu. There are two students in the class, "Song Jiajian" and "Cheng Chu".
After the gears of fate turned, everyone rushed towards their own lives.
After encountering each other by chance many years later, there is already a social class gap between the two people's identities, but love is equal and can eliminate the gap.
Concept: Love is equal