You don't really have to do this at all in your playthrough. It's only if you really just want to buy everything or make bank.
Introduction: Forgive Me Mother
There's not a lot to this, but it gets you money real quick. It just involves some cooking and using the General Store in Trista. I added a few hip-hop references in the titles just so this guide isn't bland as hell. Have fun finding which artists I'm referencing!
Step #1: Going To Work
Play the game until you reach the deployment day of the first "field study." Do whatever you have to in order to prepare for the trip first, then head to Brandon's General Goods. Hopefully you didn't convert all your Sepith Mass or buy stuff with that money yet.
If you passed that part, and went onto the field study, you're out of luck for now. Keep playing until the departing day of the next field study.
Step #2: Needs
Convert all that hard work from earlier into Mira, and then buy "Fresh Eggs" and "Coarse Salt Rock."
- Sepith Mass - 594
- Fresh Eggs - 99
- Coarse Salt Rock - 99
Step #3: Cooking Soul
In the notebook's recipe tab, there should be a "Simple Omelete" recipe. Cook that egg with your homie Elliot. You should get a decent number of "Soft & Fluffy Omelete" and "Warm Egg Soup" food items.
If you passed over Elliot's cooking skill in the first field study, just use someone else with the same wink as him later, like Emma. Maybe you can do this later in the game too if the field study groups are good to you.
Step #4: Everything's Good
Sell all of the stuff you just made to Brandon to get around a two thousand Mira profit, depending on how much is made. Get that cheddar cheese, baby!
Step #5: Bank Account
Repeat steps two through four, and you'll make a million in... I dunno. Happy grinding, though!