What can you do with the blue diamonds in Happy Landlords?

If you activate Blue Diamond, you can play the games in the event for free. Blue Diamond can change the name in the QQ game without conflicting with the name in QQ. Blue Diamond can search for friends, and you can also go to the network management office to complain. , you can add game friends. If you encounter someone you hate, add him to the blacklist, and he will not be able to play with you. The main function is to T-person.