It's been half a year since I've been with Mamoru, who accepted everything. Rion is at the climax of happiness as her old dream of "getting married to the person I love..." comes true.And I thought that I was able to gradually open up to Mamoru's son, Eiichi, who was awkward when I first started living together, and that I was steadily deepening my family ties.One day, when Rion is indulging in masturbation in her room, she feels someone's gaze through the gap in the door.When I turned around in that direction, I saw Eiichi standing there with a surprised expression.