Good

Saving even 20 won a day requires real diligence, that's amazing! If you keep saving like that, it'll become quite a nice chunk of points later on, won't it?

600 won a month 😇😇

It's too little to earn Naver Pay. And I feel like I'm losing out because I have to watch ads to get it...

I feel the same way, but it's sad if a game isn't fun when you can only play occasionally ㅠㅠ. Still, the difficulty isn't too high so it's not stressful, and the art style is cute.