Recently started dating, Naoya and Hikaru have been apart due to a business trip, left longing for each other. Their long-awaited reunion sparks an uncontrollable passion. Unable to stop kissing even in public, they head to a love hotel. Curious, they try bondage gear—Hikaru, stripped of freedom, gradually discovers her submissive pleasures, exciting Naoya. Drawn deeper by her actions, Naoya responds with more intense desire than ever. Their relationship is now crossing a new boundary.