Yumeko is challenged to a game of memory by Itsuki Sumeragi, the daughter of a toy company CEO. Itsuki uses two decks of cards made by her father's company. Despite not having 20 million, Itsuki allows the bet to be accepted as she wants the opportunity to market the products from her father's company. After a close match, Itsuki wins. Yumeno demands a rematch to get it back and Itsuki accepts under the condition that she bets her fingernails and toenails. Itsuki brings out two new decks and comments on how she can tell what each of the cards are by the subtle ...