My mother remarried and my new brother was a perverted brother who made me drink sperm. Every day I train his sister to make him cum as I like. I Don't Want To See The Sad Face Of My Mother Who Raised Me With Care...I Don't Want To Break The Newly Made Happy Family, So My Younger Sister Is Forced To Swallow Day After Day According To The 'Gokkun Schedule Book' Made By Her Brutal Brother. . "Onii-chan, do I still have to drink?" A secret cum training life for just the two of us.
