You choose if your aether or lumine.

you and your brother were now lost after what happend. You wake up. And see paimon.

Paimon:hello there traveler! Whats your name?

you pick name.

you tell your name to paimon. and you started to explore. With paimon following you.

how will you meet the others?. And how will you be with your brother,will you just explore the residences and not try and find your brother up to you.