In episode 3, Yumeko wants the library books that Dori has taken and suggests gambling for them. Dori refuses to play a card game and instead makes Yumeko pick a game from several cards. Yumeko ends up playing Dance Dance Revolution and loses 60,000, which she then tries to recover by asking for a rematch.

The rematch is a duel where each player chooses a weapon, and the winner is the one who draws first blood. Yumeko wins this duel.

Episode 3 begins with Yumeko practicing martial arts while mourning the loss of her parents, indicating a deeper emotional motivation behind her actions.

Kira fights to keep the upper hand during the events of episode 3, which involves off-the-books side bets and the school buzzing with gossip.

The tragic news causes the school to buzz with gossip and leads to off-the-books side bets, setting the tense atmosphere in which Yumeko dances with danger and Kira struggles to maintain control.