Cheng Shi and Lin Lu were known to everyone as "good friends", but three years later they never even said a word of love. Two months later, they had sex, and they were no longer the same people they remembered. They had hidden their love for three years. If they had confessed earlier and said "I just like you very much" earlier, would there have been a different result...
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.