Yū lives alone at a boarding school, enjoying a fulfilling student life that has now come to an end. As he walks home after graduation, feeling a little lonely, his stepmother, Kyōko (also known as Ando), approaches him with a warm smile. They share their excitement about reuniting with each other, and later that night, they celebrate their graduation together... just the two of them. Their conversation fills the time they spent apart, and then Kyōko leans in softly, her lips touching his gently, whispering, "This is my gift to you, grown-up Yū..." This day marks another step forward in their journey towards adulthood.
