I'm a salesman at a construction company that's not doing well, and I'm in a mistress relationship with Yumi, a married woman I met on SNS. - I thought of her as a ``convenient mistress'' who accepted everything I wanted, and when I got stressed, I called Yumi and indulged in lewd acts... - Because she had the leeway as an adult, she accepted whatever I requested, and she was a magical beauty who made me fall in love with her charm as an adult.