STORY OF SEASONS: Pioneers of Olive Town

Your shipping bin is generally the only way you'll be obtaining money through the game. To obtain this trophy, you'll need to have shipped enough items, crops, fish, or whatever to reach the valid amount and end the day. During the end-of-day results screen for everything you've shipped, this trophy will unlock, as will the title and title reward. There are also titles within the game that are unlocked for shipping 30k and 50k as well, which will become easier the further you've got in the game.

If you wait until later, you can start acquiring Raw Diamond in the third mine. Once processed, these will sell for over the amount on their own, even in Normal mode (versus Seedling Mode).