Grouplink is a type of identification where people from a social group (classmates, colleagues, siblings, simply anything!) choose different identities to link with for fun, for coding of unique people etc.
From example people choose fictionlinks from Winx like "Emma is Bloom grouplink, Sasha is Stella grouplink" or felinelink where "Tod is a leopard, Arthur is a panther, Tod's little sister is a Siamese Cat" etc.
Can be fictionlink or therianish-link or otherlink.
But everyone must be choosing their grouplink from the same group. That's why it's named grouplink after all. If you choose a fictionlink from Bratz and your brother chooses a fictionlink from Witch it can't be a group link.
Everyone must be associating with each other when choosing their grouplink. A grouplink needs a consent from each person after all. You can't just grouplink with someone you've just met on the street!
You can link on the same character together, if you're out of different characters to link with. For example there can be two Laharl-links in a disgaea overlords grouplinking of twenty people.
We'll write more information when we have them.
You're a human or non-human. You can still grouplink with each other.