The only reason why she won was because after Qiao Anhao continuously played against Lu Jinnian, she realized that he would always play the same sequence: Paper, scissors, rock.
At the time, she had been delighted for a long while to have unintentionally learned that her crush had such a quirk. It was a secret of his that she kept in the deepest part of her heart. A little secret only she knew.
Of course, from that moment, whenever they faced one another, she would be able to sneakily win with the sequence: Scissors, rock, paper.
But... It's been five years without any contact between them. Who knows if he still had the same quirk?
Though Qiao Anhao wasn't confident, she still played "Scissors", and Lu Jinnian actually played "Paper". She won.
The second time, she played "Rock", and Lu Jinnian played "Scissors". She won again.
The third time, she played "Paper", and Lu Jinnian played "Rock". She won every round.