An enchanting expression, a perky chest, a plump butt … From this moment on, I was glued to the married woman, Maria, who lived next door to her. Then one day, he lost his reason and attacked Maria, who had forgotten to lock the door and was doing some stretching at home. Ten minutes later, Maria-san showed a fearless smile, in contrast to me, who was tormented by the feeling of guilt over everything ending. The next day, I left her house not to find out, but Maria, who was waiting for me, stopped me.