you need to have met fred. to have any connection to the sky people

so get nisses staff (can be on her on in your hand) for now i suggest keeping it in your inventory for this part (due to it vanishing when a pet leaves team).

go after you get her and her staff, go to welling hotel second floor. activate that quest, go talk to roca's uncle (the welling leader) go back outside help niss. then go to the troll cave where you enter south island with roca in team.

complete that quest, after her father dies go to korea and try to talk to the villager and witch if you have not already done all this.

there is also jailor quest, roca in jail, jailor part 2(optional), la tim, magellan (optional, but i suggest getting him), clive, talking to the pirates in holy bar AND clives death in revival all to do before the korea part. so see which you missed. its a long quest so stuff can be missed if you try to rush it.

this is also an old topic. so next time please create a new topic to ask your question if you are unable to find an answer.