hi I'm new if someone could please tell me how everything works because I didn't quite understand the anime ^ ^"

Hi there, Numico desu~! It's okay if you didn't understand the anime much because we're not a fansite. There's an About section at the top where you can see the general explanation of our online community. At the top of every board, there are descriptions of what's supposed to go there. There's a "View All Threads" button too, so you don't remake an already-existing thread. Also, please read the Description + FAQ thread on the Main Board; it basically has what you need to know. The missions and projects in the Missions board are not mandatory, but we appreciate your participation. Anyways, enjoy your time here and welcome to the Dollars!! :D