Under the camphor tree in Rongcheng No. 2 Middle School, there is always a group of teenagers staggered by youth. Transfer student Wen He breaks in here with asthma medicine and a Mathematical Olympiad question book, but he bumps into the smoking school bully Zhou Yan on the rooftop - he always wears a lighter on the second button of his school uniform, but he secretly moves Wen He's desk to a sunny position.
Concept: The love between Ahe and Ayan