Miho and Naoki plan to cut back on their lives and buy their own home in 10 years, but Naoki's income seems to be quite difficult. Miho suggests to Naoki that she take a part-time job in order to make her feel a little easier, but she refuses, saying that she wants you to stay at home and support me instead of working. One day, Miho finds a page on the internet that says "Smartphone investment that can be done easily".
