32-year-old Yuu married into wealth, living a luxurious life with her rich husband. However, her husband never worked, squandering his father's inheritance on endless indulgences, leaving Yuu utterly disillusioned with his behavior. Living under the same roof, she gradually grows drawn to her brother-in-law, Yuuki. His passion for work and dedication to his dreams captivate her heart completely. Yuu's feelings slowly shift toward Yuuki, and the warmth of his embrace begins to bring her true happiness. Holding these emotions close, Yuu longs to give herself entirely to Yuuki.