Yuki and Naoki have a plan to buy their own house 10 years after they got married, but Naoki's income is not enough if he works alone. Naoki suggested that his wife take a part-time job to help him, but Yuki didn't want to work; she just wanted to not have to work but still eat :))). One day, Yuki was scrolling through Facebook and saw a multi-level marketing ad that promised to invest 1 for a return of 100, and the result was that she faced a huge debt after diving into it. Truly, there is no greater foolishness than this, and the ending is... disaster with the loan shark.