Do I do that after he has made a room or while I have a room open? Also, I noticed an option that was unusable above the "unfollow" option.
If your friend made a room, you should open 'Users' and join the room.I am sorry that the current version may display 'Join the room' in Japanese.
My friend and I are trying to join each other's room but the option is grayed out. Any advice?
Since server regions were divided, I integrated them one. please try again.