The guild declared war by agreeing to a battle. But the usual battle is to increase the PK value, but after the declaration of war, the PK of both sides will not increase the PK value.

To apply for a declaration of war, you need to go to the beach palace to find the king before you can apply. After the application, you can PK with the applied guild. The guild war lasts only three hours. After three hours, the system will prompt your guild that the guild war with a guild has ended, so the opponent guild is gone. When the battle is over, the name of "hostile guild" in the announcement will automatically disappear.