Li Suwen and Li Suya are brothers and sisters who are thirteen months apart. Their daily pleasure is to catch each other's dirt and ridicule them fiercely.
Under the appearance of comedy, there is a strong tragedy.
The story of youth is particularly exciting, who is heart-thumping and secretly flirting, who dares to face the rules, who shows the greatest friendship, who battles wits and courage with others, who occasionally makes mistakes, but never lacks the innocence that belongs to youth.
