This requires you to run all Promos at least once in both the main game and the After Story. They are:
Main game
Hand out flyers $50
Local newsletter ad $100
Billboard ad $500
Subway ad $1000
Sponsor a local festival $2000
Newspaper ad $3000
Sponsor a culinary expo $4000
Search engine ad $5000
TV show product placement $8000
Sponsor a VTuber $10000
Philia's After Story
Make a new flyer $50
Local newsletter ad $100
Billboard ad $500
Search engine ad $1000
Movie preview ad $5000
In-game ad $10000
Sponsor a VTuber $50000
Satellite ad $100000
Even though there are some repeats in the After Story, you must do then again to get credit towards the achievement. It'll unlock when you've done the last Promo.