我的初恋是我的继母。我不能告诉我爸爸……我让我深爱的继母怀孕了。 大槻ひびき

儿子爱上了继母响，再也无法控制自己的感情。他向她坦白了自己的心意，却因两人的关系始终没有改变而感到沮丧。有一天，父亲出差了。于是，他趁夜潜入响的房间，开始了一场禁忌游戏！他燃烧着炽热的爱火，忘记了所有的罪恶感，一时冲动与响发生了关系，最终导致了一场婚外情，并导致响怀孕！

A son falls in love with his stepmother Hibiki and can no longer control his feelings. He confesses his feelings to her, but is frustrated by the fact that their relationship remains unchanged. One day, his father has to go on a business trip. Then, he sneaks into her room at night and the forbidden game begins! With his burning love burning intensely, he forgets all feelings of guilt and gets carried away as he has sex with her,