It's a good event, but getting milk is a very long process. In 20 minutes, there are only 300 milk, which means 10 coins in the end. This is taking into account that initially you still need to get event items from monsters and then sit down to open summoning books. Please speed up the milk production process. You called the cow, milked her, and immediately received the milk. Because now you have to wait for it to mature, it's a very laborious, long process and very boring