I think I can help you! ① If you want to join or create a guild, please click "Guild" on the Delicious Town (the interface when you first enter the game) interface. ② You can find the guild that suits you in the guild list on the right. Each guild has its own Brief instructions, click "Apply to Join" and wait for confirmation from the other party's guild leader to join the guild. ③ If you want to create your own guild, please click the "Create Guild" button. You must reach level 8 and pay 30,000G to create a guild.

(For your convenience, the pictures below are diagrams of each step)