The three of them headed in the direction indicated by Nan Chu and soon arrived in front of a factory. It was an electronics factory, and the trio entered.
Upon entering the factory, they encountered the factory workers, who were continuously smiling without stopping their tasks.
They seemed unaware, even though they were visibly exhausted, they kept smiling.
In a corner, they found a special box, but it was locked with a four-digit password.
On the box, there was an inscription: "Happy Factory, Smile Every Day, Only Smiles Bring Happiness."
Underneath each word, there was a dot.
Additionally, there were four numbers: 2-22-42-50.
Nan Chu immediately thought of something, stating, "The dots should correspond to pinyin, and these numbers relate to the pinyin."
"2 corresponds to 'u', 22 to 'o', 42 to '', and 50 to 'n." After saying this, the lock was already opened by her.
Tai Yan and Peng Qingyun hadn't even reacted yet.
Tai Yan: [Sister Nan, you're amazing!]
