Labyrinth: The Scarred Place

Labyrinth: The Scarred Place is a 2022 anime about a family finding a place called “Labyrinth” while trying to find a missing relative.
Characters:
Mia (the main protagonist)
Hayley (deuteragonist)
Alex (tritagonist)
Erik
Jake
Gary
Laura
Emerson
Mila
Bernadette
Cynthia
Nova
Violet
Angelique
Amelia (flashbacks only)
Ren
Axel
Everett
Sumire
Harvey
Zane
Bexley
Avery (the main antagonist)
Kaitlin (the missing relative)