プレイング・カードは両手に収まるほどの小さく華やかな舞台。54“枚”の役者たちは机上で日々お客を楽しませていた。
一方、代役の白紙であるヨビとアマリは舞台裏で練習するだけの日々に閉塞感を感じているが、ある事故をきっかけにダイヤのジャックが焼失してしまい…？

A splendid stage of playing cards is small enough to fit in the palm of one’s hand. The performers, or 54 cards, entertain guests night after night on the table. Meanwhile, Yobi and Amari—blank spare cards—are constantly frustrated because they haven’t yet once been able to perform on stage but instead must keep training backstage in case they need to stand in.