Casual, exclusive relationship
Make an exclusive relationship by communicating with the people you met in the game, and doing more.
Issuance of certificate
For exclusive relationships, decide what you agree with, issue a certificate and share it with everyone.
Witnesses also participate
For exclusive relationships, have a friend witness you to deepen your relationship. The witness can send a one-sided message to the chat between the two.
Right to be forgotten
When the exclusive relationship is broken, the messages, photos, etc. in the chat room will be deleted. Let's start building a new relationship.