One day, Taichi noticed a strange sound coming from the bedroom and, upon opening the door, caught sight of Erika lying on the bed, a vibrator inserted at her vaginal entrance, moaning audibly. In that instant, his heart was deeply shaken, and a new emotion—unlike anything he'd felt before—began to stir within him. The sounds echoing through the quiet room and her responses quickly intensified the atmosphere between them. The air grew thick with tension, like a scene from a dramatic film. Taichi could do nothing but stand frozen, staring at the scene before him. This moment would become the catalyst for a profound change within him.