After The Graduation Ceremony...a Gift From Your Mother-in-law To You As An Adult-. Kanna Fuji

Yuu entered a boarding school at the same time his father remarried. His school life quickly came to an end, and on graduation day... the person who ran up to him with a smile was his beloved stepmother, Kanna. Unable to hide his joy at his crush's visit, Yuu celebrated with her that night... They talked all night, and their feelings connected. 'A present for you, grown-up Yuu,' Kanna said, and gently kissed him... And so he climbed another step up the stairs to adulthood.