[CHINESE-SUBTITLE] JUQ-646 After the graduation ceremony... A gift from your stepmother to you now that you're an adult. Yuna Shiina

Three years have passed since Yu entered a boarding school when his father remarried. His fruitful student life came to an end, and he was about to graduate. On his way home with a friend, his stepmother Yuna came running up to him from across the street, smiling. The two were happy to see each other again after a long time, and celebrated their graduation... Yuna had drunk too much in her joy, so he had to look after her. He had left home to shake off his feelings for her, the woman he had admired, but he couldn't suppress the feelings that welled up inside him again... And so he once again took the steps to adulthood.