As Hajime was about to graduate from his dormitory school after three years, he couldn't help but feel nostalgic about his feelings for his stepmother, Miyuki, which had blossomed around the same time as his father's remarriage. He thought those feelings had disappeared during his student life, but on their graduation day, when Miyuki approached him with a smile, his love for her resurfaced. Despite trying to suppress his lustful desires towards her vulnerable state, he escorted her to a hotel room where she gave him a tender kiss, saying it was a present for the grown-up version of himself. This marked another step forward in his journey towards adulthood – one filled with temptations and hidden desires. Note that the recorded contents may vary depending on the distribution method.