During an evening out with colleagues, the emerging fashion designer Minori Aizawa and her superior Akihiko Hadano indulge in their customary playful exchange. Enthralled, they miss the final train and must share a compact capsule hotel room. Both slightly intoxicated and close together, they cannot resist the clear pull between them, leading to a shared night. Although this closeness was not part of Aizawa's or Hadano's initial agenda, resisting each other becomes increasingly difficult as they collaborate. In every private instant alone, Aizawa and Hadano surrender to their deepest cravings and plunge into a realm of ecstasy in a passionate, unforgettable night that lingered long forever.