1: Lose of identity
2: Existential Crisis
3: just simple horror lol, but also lore of Kinger and maybe the trauma of being stuck in the realm for so long he only rembers in the dark and/or the trauma of losing someone close to you
4: The psicological torture Gangle went trough her life and the pressure, emphasized in the concept of the masks
5: haven’t watched it yet so idk