Honestly, I don't recommend it

It doesn't seem very efficient as a point-earning activity either. You need to clear over 50 puzzle stages + read the story to get to stage 2, and you can't leave it idle, so it's tough. Most of all, I didn't expect Fundoshi Parade to release a game that seems like it would endlessly exist overseas. Their other games are really fun, so this disappointing one is best avoided, both for the company and for you.