Kenta moved away from his parents' home and spent three years of his school life in a dormitory. - That life will soon end. - On the way home from the graduation ceremony, Kenta was walking on the way to school with a friend while talking about memories, when a beautiful woman appeared in front of him. - This is Nanako, my father's remarried partner and stepmother. - Nanako, who secretly came to celebrate Kenta, is more of a woman he admires than his mother. - I decided to celebrate with Nanako alone, but I was so happy that I drank too much alcohol and ended up getting drunk, so I had to send her back to the hotel where I was staying...