Both parents are dead and relatives are disgusted. The appearance was ruined and the marriage was forced to be cancelled. The lonely sister and the weak brother depend on each other for life. An obscure girl who has inexplicably traveled through time and is avoided by everyone. She has no personal space and no special abilities. Since you can't change your appearance or anything, you don't want to be rich, but you must at least solve the problem of food and clothing and make your life rich. So the time travel girl took her cheap brother and started on the road to making a fortune.