After The Graduation Ceremony...a Gift From My Mother-in-law To You As An Adult... Sakura Sazuki

Shinji, trying to forget his secret love for his father's new wife Sakura, enrolled in a boarding school right after the remarriage. He threw himself into his studies, and three fulfilling years passed in the blink of an eye... Then, on graduation day, on his way home, Sakura ran up to him with a smile. Hiding his longing for his beloved, they celebrate his graduation together... A tipsy Sakura gently kisses him, saying, 'Here's your graduation gift.' And the boy begins to climb the stairs to adulthood—.