The first store's sales were far hotter than the Yan siblings had expected.
And they quickly gathered a group of enthusiastic fans online.
Just after half a month, the "inventory" they had planned to sell slowly over three to five months was wiped out.
Due to a lack of "goods" available for sale, Y·Y had to close its doors.
That closure lasted a month.
Yan Yan and Yan Ling felt it was necessary to sit down and discuss their strategy.
Yan Ling came to New York.
Hot Dog Youth, enthusiasts of the dish, also arrived in New York at this time; Antonio was there to watch two of his close friends from Stanford participate in a competition.
Qi Yi and Antonio were roommates, living in a relatively rare two-person university apartment at Stanford.
But the two weren't fellows of the mathematics school; Hot Dog Youth was from the Stanford University School of Engineering, majoring in mechanical engineering.
