Yui lived an ordinary, comfortable life day to day, but one fleeting glance from a delivery man who came to her door left a deep mark on her heart. His gaze held something profound, an inexplicable allure that drew her in. Yui began to think about him constantly, and as her husband left for a business trip, her desire to be with the man grew stronger. Taking advantage of her husband's absence, she unleashed the hidden passion buried deep within. Their relationship developed from quiet tension into intense, passionate sex. She felt the warmth of his hands on her body during a bath, and was filled completely by his creampie. Between them, a strangely pure yet sensual love began to bloom, drawing her deeper into their secret affair.